Emmett gets surprising news at his dad's housewarming. Meanwhile, Travis meets his hero, football star Derrick Coleman; and Regina persuades Daphne to go out for a Latina college scholarship.

Bay is shocked to meet her biological father (Gilles Marini) at her school's art show, and then she introduces him to her parents and Daphne. Meanwhile, Daphne opens up to Emmett regarding her feelings about him, forcing him to make a difficult decision.

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.

Regina pleads with Daphne to keep her secret about what was in the guitar case, but soon the hospital board reveals info that forces Regina to spill everything. Meanwhile, Bay and Emmett's bond intensifies.

The trial involving the hospital's error gets under way. Meanwhile, Bay tries to return the cash she secretly took from John; Daphne and Jeff's relationship encounters obstacles; and Toby starts a new band.

Bay hosts an anti-Valentine's Day party, where Noah and Travis get into a fight. Meanwhile, Angelo and Lana call a temporary truce; and Regina disagrees with the Kennishes on how to deal with a situation concerning Daphne's food truck.

Daphne and Travis quarrel, while Bay and Noah's romance thrives. Elsewhere, Toby becomes intrigued by a new girl who's working as a volunteer for his dad's campaign.

Discord breaks out at Carlton when the deaf students oppose the pilot program for hearing students, leaving Daphne feeling trapped in the middle. Meanwhile, Bay finds Regina's behavior puzzling; Daphne is cast in a play; and Toby bonds with Elisa.

Daphne leads her classmates in a protest against the closing of their school, and Bay's efforts to join them are met with resistance. The episode is presented entirely through American Sign Language.

Regina returns from rehab early to spend time with Daphne, who has bonded with her biological parents while Regina was away. Meanwhile, Bay runs into Ty; Travis proves to be a bad influence on Emmett; and Kathryn and Nikki don't see eye to eye.

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.

Bay organizes Deaf Day at the amusement park, and Emmett assists her with a special movie screening. Meanwhile, Daphne's hit with a surprise when she runs into Chef Jeff; and Toby tries to help Nikki deal with a dark part of her family history.

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.

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.

Bay strives to impress her art teacher while she struggles with her commitment to field hockey. Elsewhere, Campbell assists Daphne when she makes an error at the clinic; Kathryn invites Renzo home for dinner; and Emmett investigates a vandalism problem.

Bay assists her art teacher at a gallery and hopes to get a letter of recommendation in return. Elsewhere, Daphne struggles to befriend Sharee; and Regina's latest business opportunity puts her in an awkward position.

John bonds with Nikki's mom while they help Toby move into his new apartment. Elsewhere, Kathryn goes to New York City to pitch an idea for a second book; Bay suspects that Tank has a crush on her; and Daphne worries about Sharee's home life.

Daphne plans a birthday bash for Campbell. Meanwhile, Kathryn hosts a murder-mystery party, where she and John uncover surprises about one another; and Bay wants to score an invite to Tank's fraternity luau.

Daphne wants to help Sharee search for her mom, but problems arise. Elsewhere, Bay and Toby try to get their folks to stop beings at odds with one another; Regina's new project leads to a disagreement with her mother; and Travis' actions puzzle Melody.

Kathryn's book is leaked before it's published. Meanwhile, Bay is skeptical about Emmett's new girlfriend; Daphne has an unexpected encounter at the clinic with someone from her past; and Regina feels a sense of guilt about her behavior.

A shocking discovery is made by Bay and Emmett when they challenge Matthew's threat of blackmail. Elsewhere, Daphne gets a promising opportunity at the clinic, but she's concerned about how it may impact Campbell; and Kathryn's past haunts her.

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.

The Kennish and Vasquez families rally to support a loved one who is in critical condition. Amid the emotion, blame is placed, decisions must be made and lives are forever changed.

Daphne is going off the deep end and has everyone worried. Emmett plans the perfect prom but Bay feels she must take a stand which might mean no prom at all. Toby must choose between his new roommate Tank and a DJ gig.

Graduation day has arrived, but Daphne is distracted by the impending hearing over her parole violation.