A tornado forces the Gregsons to take shelter in their basement, where Tara's new alter Shoshana takes charge and reveals some long-buried secrets during a group therapy session.

An impending visit by a social worker has Max in a tailspin; Tara horns in on Kate's friendship with Lynda; Courtney pushes Marshall to the breaking point; Neil learns Charmaine's big secret.

A happy and healthy Tara prepares for an art show with Lynda, while Kate retaliates with a controversial new business; Marshall grows closer to his friend Lionel; Max makes a life-changing decision.