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Will suffers a shocking tragedy. While he considers leaving his job at API, he begins to uncover clues that point to a sinister conspiracy. Katherine questions her billionaire husband's unexpected suicide.

Will faces his first day as the boss to his former teammates. While struggling to maintain authority, he pieces together messages left for him by David. Katherine learns Tom had a secret life.

Katherine and Wheeler share their grief and confusion over Tom's suicide. Maggie's ex husband returns asking forgiveness. David's son visits Will, leaving him with yet another clue to David's death.

Will travels with Spangler to DC, leaving the team to make a very important decision on their own. Katherine finds a suspicious voicemail on Tom's cell phone from the day before he died.

David's code leads Will to suspect someone at API. Katherine loses faith in Wheeler and decides to take matters into her own hands.

Ingram makes Will a surprising offer. Katherine finds a connection between Tom's death and another suicide victim. Maggie allows Craig to take Sophie for the night.

The FBI puts API on lockdown for a security breach. Katherine realizes she is not safe in her own home.

The CIA asks Miles and Tanya to oversee the interrogation of a captured Al-Queda member. Will looks into Atlas MacDowell. Katherine receives a mysterious envelope.

Will decides to move out of his apartment. A new analyst joins the team. Katherine reaches out to Tom's ex-wife for answers about his past.

Will secretly reaches out to Katherine and uncovers Hadas's last project. Tanya is sent to rehab. Ingram grows more suspicious of Truxton.

Will gets a assignment from Truxton. Tanya is asked to rejoin the team to help locate Kateb. A threat leaves Katherine afraid to leave her house.

Will and Grant are sent to New Jersey to interview Kateb's friends and family.

Will uncovers the missing link between Truxton and Hadas's death. Katherine discovers the truth behind her husband's suicide.