Noah and Anton visit Princeton where Noah encounters an old friend. An immensely difficult day forces Cole and Luisa to reexamine their relationship. Helen gets a new perspective on life.

Ben finally confesses the truth to Alison. But is it too late for their relationship?

A hopeful epiphany leads Cole on a journey to a horrific discovery. Noah questions his role in tragic events.

Helen goes to Joshua Tree in search of meaning. Noah and Anton begin an adventure with high hopes until an ominous phone call alters their course.

Noah supports Anton in a decision about his future, which puts Janelle in a complicated spot with her ex-husband. Alison makes a surprising discovery about her father, and another about Ben that eventually leads her back to Noah.

Vik decides it's time he started living for himself. But is he ready to face the consequences? Cole meets Nan, an old friend of his father's, who sends him on a journey to exorcise the ghosts of his past.

Alison and Ben dig into her past and begin confronting her fears. Cole's relationship with Alison is jeopardizing his marriage to Luisa.

Noah's attempt to teach his students a lesson in civil duty spirals out of control. Helen can't handle Vik's decision and goes behind his back, only to find resistance everywhere she turns.

Cole tries to keep Alison's behavior from ruining an important deal while Luisa's legal status threatens their future. An encounter with a local surfer leads Cole to question if he's the same person he used to be. Alison is saved by a handsome stranger.

Noah struggles to adjust to his new life after moving to Los Angeles to be closer to his kids. He attempts to reach a gifted but troubled student while under the stern eye of the school's principal. Helen finally discovers the source of her anxiety, only to be blindsided by a new catastrophe.