A hedonistic jingle writer's free-wheeling life comes to an abrupt halt when his brother and 10-year-old nephew move into his beach-front house.
Carefree jingle writer Charlie Harper has his lifestyle altered when his uptight brother and his 10-year-old nephew move in with him.
Despite warnings from Charlie, Jake continues to feed seagulls on the deck and the birds invade the house. Meanwhile, Charlie thinks Judith is taking advantage of Alan, who keeps going to her house to fix things.
Jake wants to go home to his mom after he gets sick, prompting Alan to think he's a failure as a husband and now as a father.
Charlie can't function when his housekeeper storms off because of Alan's constant complaints, so Alan tries desperately to woo her back. Meanwhile, Rose comes to Charlie for dating advice.
Alan and Charlie have encounters with some highly libidinous soccer moms, but with two very different outcomes.
The guys go to Evelyn's house to meet the new man she's dating, and Charlie realizes the man's daughter is a woman he's trying to avoid.
Judith is upset with Alan and Charlie when she learns that a surfer who uses Charlie's shower walks around half naked in front of Jake . Then Alan's worried when Judith and the surfer become friends.
Alan tricks Charlie into joining him and Judith in leading Jake and his classmates in the school's annual music show.
Charlie is convinced that a woman who spent the night with him wants to turn their relationship into something serious after she befriends Jake and Evelyn.
When Charlie's favorite ex announces that she is going to get married Charlie attempts to win her back. Tensions arise at a family Thanksgiving.
When Alan is surprised to see that Judith has had a makeover and is dating a man, he decides to have Charlie help him transform his image.
Berta's granddaughter spends the day at Charlie's, which isn't a problem until he learns she's a beautiful, rebellious 16-year-old.
Charlie nurses an ailing Alan back to health so they can go on a double date with two sisters, one of whom Charlie's been wanting to date for a long time.
Charlie's financial manager informs the carefree jingle writer that he spends money faster than his royalty checks come in, and now he must go on a budget.
Despite Alan's warning, Charlie falls for a seemingly crazy woman named Frankie that he meets at the garage.
Charlie is perplexed when Frankie, the mysterious woman temporarily living in the Harper household, begins falling for Alan and not him.
Charlie's still brooding over Alan's choice of their cousin as Jake's guardian if both parents die when the boy has an accident while in his care and has to be rushed to the hospital.
One of Charlie's ex-girlfriends is now a man. It gets better: He starts dating Evelyn, who's clueless about his past history with her son.
Judith's devious siren sister stirs things up at Jake's 11th birthday party when she hits on Alan. Meanwhile, Evelyn brings alcohol and has a party of her own.
Jake's sullen mood baffles and bothers the family and prompts Alan and Judith to take him to a child psychologist.
Charlie plays a tricky game when he gets involved with Alan's divorce lawyer, who could make things difficult for Alan if she were, say, dumped by a self-centered lothario.
When Charlie discovers that Alan is sleepwalking, he believes it's related to his brother's lack of sex following his divorce, and comes up with a cure.
When Jake repeats one of Charlie's sexist remarks in front of Judith's support group, the women convince Judith to stop Jake's visits with his dad and Charlie.
Charlie has a pregnancy scare involving one of his one-night stands and decides to go for the big "V," and we're not talking Vegas.
When Alan discovers that Charlie is a member of an exclusive men's support group, he begs his brother to let him join.
Alan overzealously tries to push Judith's new relationship to the next level after Charlie mentions that he'll be off the hook for alimony if Judith remarries.
Charlie tries to save Jake from school suspension by romancing his teacher, with unfortunate results.
Charlie discovers that he made a big mistake when he lends Evelyn his Mercedes for a day in exchange for her hybrid car.
Charlie falls head over heels for a woman who is better at playing hard to get than he is.
When Charlie confesses playing a nasty trick on Alan when they were younger, Alan's self image is turned upside down.
Charlie and Alan employ Berta's crazy sister to cater a party that Evelyn has cornered them into throwing for her.
Alan meets a woman at the supermarket who introduces him to the kind of fantastic sex life Charlie is accustomed to.
Charlie's ex-girlfriend comes back into his life with a little more baggage than when she left.
Jake helps Charlie write a theme song for a new cartoon, and things heat up between Alan and Rose.
Charlie finds out that his promiscuous lifestyle has become the subject of an angry web site.
Alan's platonic high school girlfriend comes back into his life and creates contention between he and Charlie.
When Judith's pipes burst due to an earthquake, Alan invites her to stay with him at Charlie's house.
Evelyn takes drastic measures to get back into her sons' and grandson's lives after Alan forbids her to see Jake.
Charlie tries to take Alan and Jake to Las Vegas in order to distract Alan from an impending medical procedure.
An already stressed Alan is pushed to the limit when Judith leaves Jake with him while she goes on vacation.
After Charlie injures his back during sex, Alan takes him to the doctor.
Charlie makes Alan pose as his life partner at a business party thrown by a gay ad executive.
Alan goes on a date with one of Charlie's ex-girlfriends.
Unable to express the anger they have toward the women in their lives, Charlie and Alan take it out on each other.
Charlie, Alan and Jake accompany Evelyn to her second-husband's funeral.
Alan goes on a nightmarish blind date in order to repay a debt to his mother.
Alan reluctantly leaves Jake at Evelyn's for a sleepover and winds up partying with Charlie and a busload of beautiful female volleyball players.
Charlie unknowingly sleeps with an elderly man's hot young trophy wife.
After Alan falls off the roof trying to fix the satellite dish, Charlie volunteers to look after Jake for the weekend.
Charlie turns Alan's chiropractic office into a brothel while Alan tries to avoid offending a large-breasted woman.
Charlie organizes an intervention to keep Alan from reuniting with Judith.
Berta moves in for a few days and sets Charlie and Alan at each others' throats.
Bout of impotence causes Charlie to reexamine his feelings toward women.
Alan is convinced that Charlie's new girlfriend has put an evil curse on him.
Rose's father confronts Charlie about his intentions towards his daughter.
Charlie cons Jake into taking ballet lessons in order to get close to the teacher.
Wealthy, elderly woman sets her sights on Alan.
Charlie helps Alan cope with his lifelong obsession to get women's approval.
Alan dates a Martha Stewart-like woman who takes over the house during the Christmas holidays.
Alan's emotional breakdown sends Charlie into therapy.
Charlie must deal with the challenges of a committed relationship that is not based on sex.
Charlie plans the ultimate romantic evening with Mia, and Alan dates a much younger woman.
Charlie's lifestyle causes tension with Mia.
Alan tries to avoid bringing his sexy 22-year-old girlfriend to Jake's birthday party.
Charlie is nominated for an advertising award against his arch nemesis who always wins.
Alan becomes financially strapped when he starts paying his young girlfriend's bills.
Kandi moves in with Alan, causing tension in the house.
Charlie is sleeping with Kandi's mother as Alan tries to win Kandi back.
Alan finds he has more in common with Jake's teacher than with Kandi.
Charlie and Alan help Jake prepare for his first boy-girl party.
Charlie's ex-girlfriend, Mia, comes back in town with an unexpected request, which Charlie follows with an unexpected question of his own.
Charlie and Mia plan their wedding.
Now that newlywed Alan has moved out, Charlie returns to his bachelor lifestyle.
Charlie finally tells Alan the truth about why he broke up with Mia, and a famous neighbor causes problems.
After nearly drowning, Charlie is convinced he saw his late father.
Alan and Kandi become embroiled in an unconventional custody battle.
Alan and Charlie bond with Judith's new fiancé in an effort to improve his relationship with Jake.
Charlie cannot see that he's dating a younger version of his mother.
Charlie helps Berta confront the man who impregnated her daughter, while Alan indulges an unusual fetish.
Alan seeks a cure for his insomnia, while Charlie pursues the mother of Jake's new girlfriend.
Ladies' man Charlie and tightwad Alan go on a double date, leaving Jake home alone for the first time.
Charlie must choose between his girlfriend and his housekeeper, while Alan looks to sell Kandi's condo but sex keeps getting in the way.
Charlie finds himself throwing an unplanned, unwanted holiday party as Evelyn tries to keep him from bedding his date.
Berta discovers that Alan has been secretly dating her daughter.
When Jake tells Charlie and Alan that he often overhears Judith and Herb having sex, it triggers a repressed memory for Charlie.
Charlie has second thoughts after setting Alan up with their hot new neighbor.
When Rose announces she is moving to London, Charlie must face his true feelings for her. Meanwhile, Alan tries online dating with unforeseen results.
Charlie tries to keep up with a much younger woman.
When Charlie and Alan tell Evelyn they don't think anyone would mourn at her funeral, she replaces them with unlikely surrogates.
Realizing Jake's childhood is almost over, Alan makes a last minute attempt at father-son bonding.
As Judith's and Herb's wedding nears, Charlie gets close to Herb's witty sister.
Alan prepares Jake for Judith's wedding, while Charlie continues his fling with Herb's sister, Myra,.
Alan befriends Greg, a gay single dad, causing Alan and Charlie to re-examine their own sexual identities. Meanwhile, Jake has a crush on Greg's daughter, Sophie. Jane Lynch also guest stars as Charlie's therapist.
Jake comes into a windfall when Charlie takes him to the track, and Alan is stuck in that special hell known as the Department of Motor Vehicles.
Charlie loses a girl to a young, handsome handyman, who is working at his house.
Charlie and Alan must confront their "daddy issues" when Evelyn's new boyfriend invites them to Vegas on his private jet.
Charlie and Alan try to prepare Jake for his first day of Junior High, but may wind up traumatizing him instead.
Charlie reacts oddly after an evening with his mother, and Alan's date reacts oddly after having sex with him.
Suffering from bimbo fatigue, Charlie lets Alan set him up with a woman his own age.
Charlie gets closer to consummating his relationship with Linda, but begins to see Rose's face everywhere he turns.
Charlie has to find creative ways to entertain his girlfriend's 4-year-old son, while Alan becomes a human guinea pig.
Charlie's girlfriend is embarrassed to be seen with him in public. Meanwhile, Jake sneaks out to a concert despite Alan's forbiddance.
Charlie and Alan butt heads over Alan's place in the house, prompting Alan and Jake to move in with Evelyn.
Charlie finds success as a children's singing star, which makes Alan miserable.
Charlie tries to resist his attraction to his soon-to-be step sister.
Alan seeks revenge when he discovers that Charlie stole his high school girlfriend.
Charlie coaches Alan in the fine art of breaking up with a woman.
Rose is back from England and takes very strange care of a very sick Charlie.
Alan dates one of his ex-wife's friends who reveals a secret about Judith's sex life.
Charlie goes with Jake on a double date and sets Alan up with a prostitute.
Alan worries that Charlie's womanizing is out of control.
Alan plans Evelyn's wedding while Charlie pursues his future step-sister.
The team from CSI investigates a mysterious death at Charlie's house.
Charlie finds himself attracted to an older woman who writes self-help books, while Alan and Jake battle over a school assignment.
Charlie tries to resist temptation when he meets the grown daughter of the woman he's dating and realizes they've met before.
Charlie encounters an ex whose son looks an awful lot like him.
Alan lends Charlie money and crosses a line in his attempts to get it back.
Charlie tries cooking, Alan tries dating two women at the same time and Jake tries beer.
Charlie romances Alan's sweet receptionist as Alan anxiously awaits disaster.
The guys bump into Jake's former teacher who became a stripper after a fling with Charlie. Charlie tries to help her out by giving her a room and a job, but things spiral out of control.
When Judith kicks Herb to the curb, Alan comes knocking.
Alan tries to escape Judith's grasp as Charlie and Herb go on the prowl.
Charlie's new girlfriend asks him to spend the night at her place, while Alan tries to enforce a punishment on Jake.
Jake disappears with the daughter of Charlie's neighbor, a former NFL player, and Charlie is left to cover his back. Meanwhile, Alan scores a hot date with the help of Charlie's Mercedes.
Evelyn offers to pay for Jake's college education, leaving Alan to wonder if he ever needs to work again.
One of Charlie's old partners in crime dies, leaving Charlie to reevaluate his own reckless lifestyle.
Charlie and Jake fight for the affections of a waitress, while Alan fights sexual tension with his receptionist.
Judith is pregnant with a baby girl and Alan is convinced that he is the father. Meanwhile, Jake is in a contentious mood and Charlie thinks he knows why.
Convinced that Alan's family doesn't fully appreciate him, Melissa invites Alan to live with her and her mom.
Charlie finds himself in couples counseling.
Charlie has to remove a half-naked woman from his bedroom before Chelsea arrives.
Charlie tells Chelsea that he loves her, but doesn't get the response he expects.
When Chelsea gets sick and Charlie has to take care of her, he must also fight the overwhelming urge to flee.
Charlie joins Alan, Herb and his next door neighbor in a night of alcohol-fueled sexual reminiscences after Chelsea finds nude pictures of another woman on his phone.
Evelyn finally meets Chelsea and Charlie, and tries to prevent them from becoming friends.
Chelsea sets Alan up on a blind date with her new friend. Rose.
Charlie reluctantly agrees to let Chelsea move in as he mourns the loss of his bachelor pad. Meanwhile, Alan finds that there's not much space left for him in the house.
Alan and Chelsea become best buds, and Charlie decides to take advantage of the situation.
Charlie starts to question his relationship with Chelsea when he hears that Mia is back in town. Meanwhile, Judith goes into labor and Charlie, Alan and Herb rush her to the hospital.
Charlie must decide between his fiancée, Chelsea, and his old flame, Mia.
When Charlie's fiancée, Chelsea, convinces him to let Melissa, Alan's girlfriend, move in, the girls take over the house.
Alan plays nursemaid to Judith's baby and her tipsy mother. Meanwhile, Jake blackmails Charlie with an incriminating photo.
Alan takes a job working for Evelyn, and Charlie is forced to mend Chelsea and Jake's rocky relationship.
Jake refuses to stay with Charlie and Alan after they embarrass him in public.
Alan recommends that Chelsea get breast reduction surgery and Charlie kicks him out.
Charlie and Alan wake up together in bed with a strange woman.
Chelsea invites her beautiful college roommate to stay at the house while she gets over a bad breakup.
Charlie is crushed when he discovers he hasn't been satisfying Chelsea and Alan attempts to cure his thinning hair on the cheap.
Charlie discovers that Chelsea hasn't been completely honest about her finances.
Charlie coaches Jake on the art of infidelity while his girlfriend is away for Christmas.
Jake writes love songs to woo his ex-girlfriend, and Herb and Alan hide their secret friendship from Judith's watchful eye.
Charlie endures a colonoscopy to get out of a trip to see Chelsea's bigoted parents, only to return home and find them in his living room.
Alan ends up in jail after a bar fight, and Charlie worries that Chelsea might be interested in the lawyer who takes the case.
Charlie's jealousy threatens his relationship with Chelsea.
Charlie runs off to Vegas and returns with a new wife, but she's not Chelsea.
Charlie and Chelsea have a post-breakup one-night stand.
Charlie has a return engagement with Chelsea's best friend, while Alan has an unexpected effect on a new female patient.
Jake's new friend, Eldridge, is a bad influence but Alan really likes his hot mom.
Alan tries for an intimate night at a hotel with his new girlfriend, while Charlie takes a different approach to obtain the "girlfriend experience".
Alan and Jake go on a road trip while Charlie is visited by the ghosts of girlfriends past.
Jake becomes Charlie's driver after Charlie has his license suspended, and to Charlie's chagrin, Alan makes plans to attend Chelsea's birthday party,.
When Jake finds out that Alan has been dating Eldridge's mom, he packs up and heads to Judith and Herb's. Meanwhile, Charlie decides it's time to cut back on boozing.
When Lindsey asks Alan to move in with her, Charlie will do anything to get Alan to say "yes".
Alan moves in with Lyndsey but continues to have a rendezvous with Melissa at Charlie's house.
Lyndsey and Eldridge move into Charlie's house after Alan burns down their home.
Alan goes out on the town pretending to be Charlie, while Charlie sneaks off for some cosmetic surgery.
Charlie has trouble adjusting to dating a slightly older woman.
Charlie's past comes back to bite him when his girlfriend decides that his stalker, Rose, is just too much to handle.
Charlie and Alan try to set up Evelyn with Russell, the pharmacist.
When Berta takes a couple of days off, Charlie falls for her replacement. Meanwhile, Alan believes he's being stalked by Lyndsey's ex-husband.
Charlie goes on a spending spree for his old fling, Courtney, who shows up after three years in prison for conning him out of money.
Alan is ashamed that he can't afford to buy Lyndsey a birthday present, so he gets creative.
When Charlie and Courtney break up, Charlie falls into a depression and goes to see his psychiatrist.
When Charlie and Lyndsey start becoming friendly, Alan's paranoia gets the best of him.
Charlie's obsession with the newly "married" Rose leads him to stalk her. Meanwhile, Alan grows concerned when Jake and Eldridge start videotaping stupid and extremely dangerous stunts.
While Charlie and Rose carry on their "affair," Alan's chiropractic business turns into a Ponzi scheme.
Rose uncovers Alan's Ponzi scheme and Alan, in turn, meets "Manny," Rose's mannequin "husband." Meanwhile, Charlie is eager to get some alone time with Rose.
Ashton Kutcher joins the cast as Walden Schmidt, an internet billionaire with a broken heart.
Judy Greer is introduced as Bridget, Walden's ex-wife.
Alan prepares Walden for a date with Bridget, while Jake decides to emulate Walden and drop out of school.
Trying to rebound from his recent separation, Walden goes looking for Mrs. Right, while Alan has an opportunity to reconcile with Lyndsey.
Alan struggles to come to terms with Lyndsey's risque movie past, and Walden tries to cheer him up by throwing a party at the house.
Walden receives divorce papers from Bridget, but forgets his depression when he meets a girl who looks eerily like her.
Jake has a crush on his chemistry tutor, who has a crush on Walden. Meanwhile, Alan obsesses over the journal his brother left him in his will.
When Walden begins redecorating the beach house, Alan becomes overly emotional.
Upon his release from the hospital, Alan is met with a slew of challenges that test his ability to cope.
Walden hits it off with a British babe, but neither of them is sure he's ready to re-enter the dating world.
Walden is trying his best to impress his new love interest when Bridget reappears in his life.
Walden's mother arrives and Alan is smitten with her, even as she reveals a secret about Walden's past that sends him into a downward spiral.
When Walden's ex-wife and his mother try to take control of his company, he tries to enlist Alan as an ally.
Zoey tries to coerce Walden into cutting his hair and shaving. Meanwhile, Alan and Lyndsey rekindle their relationship.
Walden tries to loosen up Zoey by sharing a couple of Berta's special brownies.
Strained relationships and girl-fighting result when a huge storm traps Walden, Alan, Zoey and Lyndsey in the house on Valentine's Day.
Walden and Zoey's relationship suffers after they share a near-death experience. Meanwhile, Alan wonders if Lyndsey has a drinking problem.
Things get tense in the Malibu house when Walden's estranged ex-business partner shows up looking to bury the hatchet.
Alan and Lyndsey introduce their mothers to one another. Meanwhile, Jake and Eldridge enlist Walden to drive them to a high school party.
Walden breaks the news to Zoey that he is going into business with his ex-wife. Meanwhile, Alan and Lyndsey try to come to terms with their moms' new relationship.
Walden's commitment is tested when Zoey and her daughter come to live with him. Meanwhile, Alan gets more than he bargained for when he moves in with Lyndsey.
After Alan suffers a minor heart attack, Charlie's ghost pays a visit to his hospital bedside.
Alan is showered with love and affection upon returning from the hospital, but Zoey isn't so sure it's deserved.
Jake is pressured to make a decision about his future.
Walden plans a big surprise for Zoey's birthday.
Following his break-up with Zoey, Walden has a breakdown.
Alan and Lyndsey decide to spice things up in the bedroom.
Walden starts to feel his age when a friend's daughter comes to town.
Despite Alan's warnings, Walden starts dating Rose.
Walden has to choose between Rose and Zoey.
Tired of the complications of a traditional relationship, Walden hires an actress to play the part of his girlfriend. Meanwhile, Jake and Missi plan a rendezvous at the beach house.
Alan is hesitant to make a serious commitment to Lyndsey but gets inspiration from an unlikely source. Meanwhile, Walden enjoys being a boy-toy for a rich older woman.
Alan's smokin' hot, famous ex-wife, Kandi, wants him back. Meanwhile, Berta isn't interested in celebrating her birthday, so Walden helps make it special.
Alan helps Walden create a new identity in order to find a woman who isn't just after his money.
Walden juggles having two identities - rich man and poor man - and Alan finds himself alone at Christmas.
Using Walden's money, Alan invests in Kate's fashion line. Meanwhile, leading a double life starts to take its toll on Walden.
Walden and Alan go to Kate's fashion show in New York so Walden can tell her the truth about his identity.
Alan and Lyndsey's relationship is strained when he won't give her a key to the beach house. Meanwhile, Walden, Alan, Billy and Herb commiserate about women and relationships.
Alan has concerns when Jake brings his 36-year-old girlfriend home for a visit. Meanwhile, Walden tries to keep a secret from Alan.
Walden, depressed about being single on Valentine's Day, tries to convince Kate to give him another chance. Meanwhile, Alan's Valentine's Day plans take a turn for the worse.
When Walden runs into his ex-wife at a high-end singles mixer and they talk about getting back together, Alan worries that she's not good for Walden.
Following a fight with Walden, Alan moves in with Herb.
Walden and Alan try to cheer up a lonely Herb, but end up partying a little too hard.
When Jake cheats on his girlfriend with her 18-year-old daughter, Alan and Walden get caught in the crossfire.
Alan has trouble coping when Lyndsey dumps him and Walden must find a way to help him get back on his feet.
When Walden encourages a depressed Alan to update his look and start dating again, Alan faces a moral dilemma when he attracts a married woman.
Walden dates a hot 22-year-old woman, but finds himself more attracted to her worldly grandmother. Meanwhile, Alan and Jake go on a father-son bonding trip.
Alan is shocked when Charlie's 25-year-old daughter shows up at Walden's beach house to connect with what's left of her family, and who happens to like everything her dad liked - including women.
When Walden feels cramped in his own house, Jenny moves in with Evelyn and her boyfriend, Marty. Meanwhile, Alan becomes Lyndsey's "other man".
Walden and Alan think it may be time for Berta to retire when she injures her back at work.
Walden starts partying with Jenny and her hot friends. Meanwhile, Alan and Lyndsey's illicit affair is jeopardized.
Alan befriends Lyndsey's boyfriend in an effort to find out what he has that Alan doesn't. Meanwhile, Walden helps Jenny be more proactive in pursuing her acting career.
When Alan learns Walden knows Lynda Carter, he asks him to set him up on a date with her. Against his better judgment, Walden agrees to invite her to the house for dinner.
Walden and Alan find themselves on dates with two ideal women until Lyndsey's jealousy throws a wrench in their evening.
Alan and Lyndsey's illicit affair puts Walden in danger, forcing him to accept Rose's help.
Walden's date with an accident-prone model goes longer than expected. Meanwhile, Alan dates a woman who shares some surprising personal information with him.
Walden helps Jenny get a second date with a one-night stand and Alan's transgender girlfriend's ex-wife hits on him. Meanwhile, in the spirit of the holidays, Alan receives a Japanese delicacy from Jake for Christmas, and Walden's Malibu house is alive with questionable Christmas carol lyrics.
Walden joins his beautiful former employee on a brilliant new project. Meanwhile, Alan advises Jenny to open up to her girlfriend or risk losing her.
Alan lets Lyndsey's boyfriend Larry set him up on a date. Meanwhile, Walden offers to help Nicole with her software project so she'll have time to date him.
After Marty proposes to Evelyn, Walden and Alan throw him a bachelor party with several of his old friends.
Alan learns that Lyndsey broke up with Larry and didn't tell him. Meanwhile, Walden sets out to prove that he's a man's man.
Alan gives Lyndsey the option of choosing between him and Larry. Meanwhile, Jenny fears she and Brooke are growing apart.
"How To Get Rid of Alan Harper"- Walden suspects his new girlfriend is cheating on him. Meanwhile, Alan gets even more intertwined in Lyndsey and Larry's relationship when he starts dating Larry's sister, Gretchen.
Lyndsey discovers that Alan is sleeping with Larry's sister, Gretchen. Meanwhile, Walden struggles with telling Barry to find his own place.
Walden gets an invitation to his ex-girlfriend's boutique opening. Meanwhile, Gretchen wants to spend more time at Alan's house.
Walden reconnects with Kate and is sure she's "The One" - that is, until he meets Vivian and becomes convinced she's "The One." Meanwhile, Alan and Gretchen grow closer.
Alan stumbles upon an opportunity to make money. Meanwhile, Walden has to address his co-dependency issues.
Alan's girlfriend, Gretchen, insists he confess his true identity to Larry. Meanwhile, Walden goes on a road trip with Jenny and Barry to see his first car.
Alan confesses his true identity to Larry and has to face the consequences.
Following a health scare on Halloween, Walden decides to reprioritize his life with Alan's help.
When Walden asks Alan to sign a pre-nup, Alan gets offended and has second thoughts about getting married.
Alan and Walden have a meeting with an adoption social worker that hinges on them being convincing as a loving couple. Meanwhile, Lyndsey returns after 60 days in rehab.
Walden and Alan meet a birth mother who's considering them to adopt her baby.
Walden decides to foster a 6-year-old boy, but begins to doubt himself when they don't bond like he expected.
When Alan realizes Louis thinks he's cool, he starts breaking Walden's rules in order to stay that way.
Alan and Walden befriend three moms at a kids' gym, but things get complicated when Walden becomes attracted to one of them. Meanwhile, Alan goes out for a girls' night with a group of moms.
Walden and Alan are determined to convince Louis that Santa Claus is real.
Walden discovers how challenging it is to be intimate with women when his foster son, Louis, is in the house. Also, Herb asks Alan if he can go on a date with Lyndsey.
Alan takes it upon himself to help Walden keep Louis after the social worker discovers he and Walden are not really a gay couple.
Walden joins a group for adoptive fathers, and finds it to be a nice escape from Alan.
When Alan breaks up with their social worker to get back together with Lyndsey, Walden worries it will affect Louis' adoption.
Walden fears if he breaks up with Ms. McMartin, it will jeopardize his adoption of Louis. Also, Alan hesitates when Lyndsey asks him to move in with her.
After they sign their divorce papers, Walden offers Alan the gift of his choice, but when Alan chooses something selfish and impractical, it puts his relationship with Lyndsey on the line.
Charlie Harper is alive. Or is he?
The series finale recalls the life—and presumed death—of Charlie Harper.
