Bay believes she's uncovered her birth father's identity online, so she asks Daphne and Emmett to accompany her when she meets him. Meanwhile, John and Kathryn suspect Regina is to blame for the hospital's recent actions regarding their lawsuit.

The Carlton prom gets underway, and Travis tags along with Daphne and Wilke, while Emmett feels the weight of the secret he's keeping from Bay. Elsewhere, Angelo resurfaces; and Kathryn and John's lawyer crosses a line.

Daphne organizes a Senior Ditch Day, which gets out of hand. Bay secretly grapples with her mortality.

Daphne struggles with the speed and depth of her coursework.

Daphne, Bay, and Travis celebrate spring break with a volunteer trip to rural Mexico with Melody to distribute hearing aids to underprivileged locals.