Bay discovers some surprising info about Ty's time in the military as she reconnects with him. Meanwhile, Toby and Travis covet the same position at John's car wash; and Kathryn and Daphne have trouble accepting Bay's desire to stay with Regina.

Angelo becomes a member of the country club. Meanwhile, Regina begins a new job; Kathryn's position as a senator's wife leads her to have an awkward encounter; Daphne is unsure about Jace's feelings; and Bay uncovers new info about Ty and Mary Beth.

A look at what would have happened if Regina had revealed the switch when she first uncovered it finds both girls being raised by the Kennishes: Daphne has a cochlear implant and is spoiled and manipulative, while Bay's a top scholar who overcompensates.

The Kennishes adapt to change in the wake of a family emergency. Meanwhile, Daphne's family obligations interfere with her time with Jace; Angelo tries to increase business for Regina; and Bay feels uneasy when she meets an Army medic who served with Ty.

Angelo's relationship with Bay is tested as he fights for custody of his infant daughter. Elsewhere, Daphne and Jace stumble onto a possible political scandal; Nikki learns that Toby's reconnected with Simone; and Emmett sets up a blind date for his mom.

Ty and Bay embark on a camping trip. Elsewhere, John continues to show Regina his gratitude; Nikki questions her mother about her father's past; and Parker's distressing news causes Daphne to become more frustrated with Jace.

Bay and Daphne host a bachelorette party for Nikki. Meanwhile, Toby's bachelor party goes off course because of Simone; Jennice makes some surprising requests for the wedding; and an altered living arrangement has Angelo and Regina reexamining things.

Toby prepares for his wedding, and his parents contemplate being truthful with him. Meanwhile, Bay seeks a long-distance romance with Ty in the face of his redeployment; and Daphne is forced to own up to her mistakes.

Toby comes home from Iceland with a new career goal. Meanwhile, Bay gets unexpected news concerning college; Angelo has Daphne alleviate stress by focusing on a baking challenge; and Regina faces an ethical dilemma regarding the East Riverside project.

Daphne lashes out at Regina. Bay tries to mend her friendship with Tank.