
When Anthony Sullivan disappears on his tenth birthday, his family is devastated. However, as more and more time passes without the police being able to locate him, long-buried family secrets are dragged to the surface, turning the Sullivan family against one another.





Tensions rise between Luke and Henry when Anthony gets in trouble at school; Luke and Helen panic when Anthony vanishes.
Susan and Charles make a mysterious discovery in the park. The investigation into Anthony's disappearance is reopened after two years.
Luke and Helen search for suspects connected to Henry's former work; Helen is desperate for information about her son; Henry continues his own investigation on the side; Catherine finds a source of comfort.
Susan and Charles focus on one suspect; stuck in the hospital, Henry seeks advice from Catherine's patient; a new discovery in the investigation.
Henry asks Fred for help; Luke and Helen still believe their son's disappearance is related to Henry's past; Catherine is troubled by Fred's death; Susan makes an important discovery.
The police and the Sullivans race to find Anthony.