Noah and Helen try to have an amicable divorce, but inescapable conflict is revealed; Helen experiences surprising developments.
Alison's summer with Noah is interrupted by an unwelcome guest. Meanwhile, Cole's self-destructive lifestyle causes everyone to become concerned.
Noah's undying love for Alison leads to serious consequences. Meanwhile, Alison discovers a surprising truth about how to sustain a marriage.
Helen makes an innocent mistake that leads to outrageous consequences. Meanwhile, a court order leads to a dire setback for Noah and Alison.
Alison is thrown by an unpleasant shift in behavior from her Hudson Valley hosts and furious with Noah after a chance discovery about his new book. Meanwhile, Cole rejects Scotty's plan to make money for the family and enjoys an unexpected connection with someone new; and Scotty catches Cole in a situation best kept secret.
A medical emergency with Martin casts Helen and Noah's litigation process in a new light; Helen makes a long-overdue decision; Noah is surprised when Alison wants to stay with her mother at the Sousanna Institute and realizes that the dynamics of their relationship have shifted, which leads to some troublesome discoveries.
Alison's mother raises concerns about Noah and Alison's new lifestyle; Alison confronts Noah about his revealing new book over Thanksgiving dinner; Cole lashes out at Luisa and is further alienated from his family in the wake of startling revelations.
Helen is bewildered by Whitney's future plans; Helen surprises Noah with a difficult admission; Noah faces increased temptations when his fame escalates.
Alison weathers a momentous journey alone; Helen receives unexpected attention from a sexy but exasperating source; Noah faces a terrible reckoning; Cole is pushed to the edge by an array of challenges.
Noah grapples with some essential questions. Meanwhile, Alison begins to doubt a recent ambition, and renewed interactions with the Lockhart brothers force her to consider a harrowing possibility.
A series of revelations rattle Noah; Alison makes a momentous decision.
Season 2 ends as events set in motion long ago come to their conclusion. A startling admission causes Noah to withdraw from his new life. Meanwhile, Alison is honest with Noah and herself; a dispute between Cole and Scotty is followed by tragedy; and a turn in Noah's trial results in a shocking event.