In the series premiere of this drama, a hospital error that involved sending two newborns home with the wrong families is uncovered years later, when the girls are teenagers. The girls went on to lead very different lives: Artistic Bay Kennish (Vanessa Marano) grew up in a world of privilege, while athletic Daphne Vasquez (Katie Lecleric) was raised by a single mother and contracted an illness that left her deaf at a young age.

Kathryn questions why Regina isn't joining in the lawsuit against the hospital. Meanwhile, Daphne goes out with Liam and encounters new difficulties dating a hearing person; and Bay finds a kindred spirit in Ty, who hails from Daphne's old neighborhood.

Bay becomes curious about her birth father. Meanwhile, Kathryn deals with her nosy neighbors; and John takes an interest in Daphne's basketball games and meets Melody (Marlee Matlin), a friend of Regina's who works at Daphne's school.

Kathryn hosts a fund-raiser for Buckner Hall, and Toby's band provides the evening's entertainment. Meanwhile, Daphne is crushed to find out that she's been dating Bay's ex-boyfriend; and John and Melody's new friendship makes Kathryn uneasy.

Kathryn and John insist on having Ty over for dinner after they learn that Bay has been seeing him secretly. Elsewhere, Toby asks Daphne and Emmett to help him win a poker game, which puts Daphne in an uncomfortable position.

Daphne struggles to keep up with a cooking class at Buckner Hall. Elsewhere, Bay and Emmett grow close while looking for clues about Bay's biological father; and Toby and Wilke try to break into school to swipe a test.

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.

Bay and Daphne receive cars from John and Kathryn on their birthday, but Daphne is uncomfortable accepting such a lavish present. Meanwhile, Regina stops hiding out at Melody's place; and Bay and Emmett's secret romance continues to flourish.

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.

Daphne follows Emmett to a music festival, hoping to get some private time with him. Elsewhere, John requests that Regina be present when Bay sees Angelo again; and Kathryn secretly talks to a nurse who could assist in the lawsuit against the hospital.

Bay fails to dazzle Melody with her American Sign Language skills. Elsewhere, Kathryn contemplates writing a book about her baby-swap experience; Daphne befriends an old pal of Bay's; and Wilke and Toby seek to make a profit by selling phony IDs.

Melody attributes Emmett's troublemaking behavior to Bay. Elsewhere, Regina becomes Angelo's business partner; Daphne's displeased with her basketball coach; and Kathryn and John face a possible setback in their lawsuit because of their lawyer.

Daphne and Bay unite to help Emmett save his motorcycle. Elsewhere, Kathryn and John retain a new lawyer for their case against the hospital; and Angelo learns something that could jeopardize his business arrangement with Regina.

Angelo attends a dinner at the Kennishs' home. Meanwhile, Bay helps Emmett move into his dad's place, where they meet his father's girlfriend; and Daphne and Wilke go out on a date.

Kathryn's mother visits the family and forms a bond with Daphne, yet Daphne still feels a strong connection with where she was raised. Meanwhile, Bay and Regina look into Angelo's disappearance; and Toby realizes he can only please Simone if he changes.

Emmett photographs Bay and Daphne's blended family for a school assignment. Meanwhile, Regina gets acquainted with an art-gallery owner; Daphne questions Simone's trustworthiness; and Bay and Emmett divulge their true feelings to each other.

Things don't go well at Regina's art show, where Emmett's parents get into a big fight. Meanwhile, Kathryn's latest actions may jeopardize the lawsuit against the hospital; and Daphne feels caught in the middle regarding her two schools.

Daphne is unsure about her romance with Wilke, and then she meets a confrontational new student at school. Meanwhile, Emmett isn't happy to learn that Bay is still in contact with Ty, who may have been injured in Afghanistan.

Bay must testify in Emmett's custody case, and Emmett's actions threaten to end their relationship. Elsewhere, a nervous Daphne prepares for a basketball tournament between her current and former teams; and Kathryn has a meeting with a New York editor.

Bay and Daphne arrange an ASL zombie movie shoot for Emmett's birthday. Meanwhile, Emmett wrestles with whether to tell Bay about his betrayal; and Regina has doubts about assisting with Kathryn's book.

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.

Bay returns from a trip abroad with a new boyfriend, but she must face issues from her past concerning Emmett and Angelo. Meanwhile, Daphne seeks employment help from Kathryn; and Regina impulsively makes a big decision.

Regina and Angelo face repercussions from their marriage. Meanwhile, Bay meets a fellow street artist; Daphne and Emmett enter their zombie movie in a film festival; and John's baseball record is in jeopardy of being broken.

Daphne causes a huge mishap at the restaurant, and she grows closer with her boss in the aftermath. Elsewhere, Bay manipulates a situation with her two dads to get what she wants; and Kathryn is envious of the attention an interviewer showers on Regina.

In the second-season opener, a newly wealthy Angelo buys expensive presents for everyone. Meanwhile, John and Kathryn contemplate entering the political arena; Bay faces cheating accusations; and Daphne lands in hot water because of Jeff.

Bay enrolls in an experimental program at Carlton for siblings of deaf students. Elsewhere, Toby embarks on a romance with Nikki, but then he pulls back after he finds a distasteful picture of her on the Internet; and Regina learns about Angelo's baby.

Melody hosts a tolerance retreat after tension builds between the hearing and deaf students at Carlton. Elsewhere, Kathryn's remarks during a radio interview may jeopardize John's campaign; and Regina gets some alarming health news.

Bay adjusts to the changing nature of her relationship with Angelo; Daphne considers taking the next step with Travis.

Daphne feels uncomfortable around Travis; Kathryn tries to get closer to Bay by volunteering to work at Carlton.

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.

The Carlton students learn the outcome of their protest. Meanwhile, John's campaign concludes abruptly; Emmett contemplates telling Bay about Daphne and Noah's kiss; Lana's labor begins; and an inebriated Regina turns up at Angelo's door.

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.

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.

Toby and Nikki's relationship is strained by work and wedding planning, so Bay tries to help Toby find a release by booking a gig for his band. Meanwhile, Regina and Bay's messiness irks Angelo; and Jace introduces Daphne to a new adventure.

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.

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.

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.

In the third-season opener, the girls begin their senior year at Carlton, where Toby takes on a coaching position. Meanwhile, Kathryn befriends a tap dancer; Daphne starts her probation work at a free clinic; and Bay's new art teacher inspires her.

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.

Daphne searches for a patient she accidentally let leave. Meanwhile, Bay discovers that Emmett is dating again; Jorge wants Daphne to accompany him to a family gathering; and Regina and Angelo have a discussion about business.

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.

Daphne asks to take on more work at the clinic as she contemplates studying premed in college. Elsewhere, Bay tries to measure up to her art teacher's expectations while dealing with her injury; and Travis invites his girlfriend to a dance at school.

Daphne assists Angelo with a fund-raiser at the clinic. Meanwhile, Bay can't ignore MaryBeth's feelings for Tank; Sharee is tutored by Toby; and John and Katherine entertain John's old baseball buddy.

Toby gets an unexpected visit from Nikki. Meanwhile, Bay and Daphne get ready for a big field-hockey game, and the rivalry between their team and the opposition intensifies; and Regina's connections to her old neighborhood prove beneficial.

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.

Melody wants to put an end to Emmett getting bullied by Matthew. Meanwhile, Bay feels torn between her feelings for Emmett and Tank; and Daphne is determined to hunt down the individual who vandalized Regina's studio.

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.

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.

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.

John brings Daphne and Bay to Chicago to tour Northwestern. Kathryn entertains baby Abby and Leo to help Regina.

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

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

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.

As the Kennish and Vasquez families prepare to celebrate Christmas in their traditional ways, Bay and Daphne find themselves living each other's lives as if the switch never happened on an all-new holiday-themed episode.

With both Emmett and Daphne heading off to college, Bay finds that taking the blame for Daphne may be harder than she thought.

Daphne struggles with the speed and depth of her coursework.

Bay's current status may prevent her from qualifying for the Kansas City Artist Showcase.

Bay feels pressured to maximize her short time with Emmett when he comes for a surprise visit.

After a night of drinking with her friend Tank (guest star Max Adler, “Glee”), Bay wakes to find that she doesn’t remember all the details of the night. She tries to piece together the events of the evening, but as she speaks with different people about the situation, what really happened may not be so clear.

A private matter goes public for Bay, leading to an investigation by the university.

As a severe storm warning forces everyone to hunker down indoors, Kathryn's mom Bonnie comes for a visit, bringing her friend Lucille and delivers some unexpected news to Kathryn. Bay finds that Emmett is avoiding any discussion of what triggered the UMKC investigation. Meanwhile, Daphne goes to see Regina at the coffee house where several shocks await her, including one that will put her freedom at risk.

Bay tries to figure out how she can pursue an art career. Regina invites Eric and his son to stay with her temporarily. Mingo asks Daphne to hang out. Meanwhile, Kathryn offers to help Travis with his English.

Iris urges Daphne to broaden her college experience by rushing a sorority. Bay inserts herself when Travis's popularity as a UMKC baseball player starts to affect his relationship with Mary Beth. Meanwhile, Toby plans to ask Lily to move in with him.

Intent on making their relationship work, Bay surprises Emmett with a visit to Los Angeles while he’s shooting his first big class project. Daphne is distraught with her performance in school and the idea of letting Bay and her family down. Kathryn and Toby get the chance to have their musical produced. Meanwhile, Regina is shocked by Eric’s reaction to a buyout offer on the coffeeshop.

Bay is haunted by her breakup with Emmett and struggles to figure out where their relationship fell apart. Daphne's excitement about her new relationship with Mingo is hampered by her friends' opinion of him. John and Kathryn's new accountant has some bad news. Regina digs deeper into the story of Eric's ex-wife, and everyone is shocked by the news that someone is pregnant.

In the wake of her breakup with Emmett, Bay decides to refocus her energy on school and signs up for a Spanish class, only to discover that the new harassment policy has put her in the spotlight. Daphne learns that her D in Chemistry will affect her scholarship. John finds himself under serious financial strain as Kathryn makes plans to produce her musical herself. Meanwhile, Daphne and Mingo have a major difference of opinion that leaves Daphne with doubts about their compatibility.

Daphne is thrilled when Eric asks Regina to move in with him, but Regina is troubled by how little she knows about the mother of Eric's son, Will, and decides to go to Atlanta to find out more about the woman. John's financial stresses come to a head when Toby approaches the family for support, prompting John to lash out at him. Bay is surprised to learn she and Daphne have opposing opinions about how to deal with the pregnancy. Meanwhile, Travis goes to Los Angeles to visit Emmett and is dismayed to find Emmett has gone "Hollywood."

The news about Regina moving out from the guest house is a big discovery on its own, but it’s definitely not the only one. As Kathryn and John discuss the future of their finances, they stumble upon the idea of endorsing products. Daphne joins an ambulance ride-along so that she can become her dorm’s safety captain. Meanwhile, the reminder of Angelo’s upcoming birthday only creates more tension.

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

Daphne and Mingo decide to introduce their parents at the Kennishes’ grill night, only to find Mingo’s father is the business manager John blames for his current financial problems. Bay has an awkward run in with Tank at the restaurant where he works.

With Mingo’s help, Daphne holds a fundraiser to help support a sign-language school in Mexico. Bay is livid when a student starts using her art to sell crude t-shirts. Regina deals with the repercussions of digging through Eric’s past. Meanwhile, Toby and Lily have to make difficult decisions about their future.

Daphne’s correspondence with Quinn starts to affect her relationship with Mingo.

In an effort to finish some last minute planning for Lily’s baby shower, Regina asks Bay to spend some time with Will.

Bay is excited to hold her first art show. Daphne interviews for an internship that would bring her closer to Quinn, causing friction with Mingo.

Daphne and Bay are so enthralled with China that they stay longer than anticipated, but after 10 months, they get an emergency call and drop everything to return home. Once there, Daphne tries to integrate herself back into campus life but finds that things have changed without her. Bay is mixed up about her feelings towards Emmett who is struggling with his own problems. Meanwhile, Kathryn and John quarrel over her job and Regina feels guilty about a secret tryst.

After a photo of Daphne and Mingo dressed up as their favorite singers at a college costume party goes viral, the pair find themselves caught up in a controversy that escalates into a discussion of race relations and free speech. Bay seeks a job at the tattoo parlor in town. Kathryn and John court a new shortstop for the UMKC baseball team, while Regina and Luca work on a class project together.

Returning from London for a visit, Toby and Lily reveal their plans to get married in the Kennish backyard. But a fight before the wedding may tear them apart before they can say “I do.” Regina must decide whether to reveal her relationship with Luca to the family. When she least expects it, Bay runs into Tank again.

Daphne and Sharee are horrified to stumble upon a racist display at the Black Student Union on campus. When the perpetrators are given minimal punishment, Iris starts a hunger strike in protest. Daphne receives an anonymous threat and Sharee grows frustrated with how the school is handling the situation. Emmett invites Bay to help him with an art project, causing friction with Travis who’s already upset that John seems ready to replace him on the baseball team.

With tensions running at an all-time high, the Black Student Union takes a stand against the university administration until their demands are heard. Told in three chapters from the varying perspectives of Sharee, Iris and Chris, the students deal with their frustrations in different ways. Iris pledges to continue her hunger strike until the students responsible for a racist display outside the Black Student Union are expelled, but her commitment has consequences on her health. Sharee faces the pain of her own past as she tries to gather signatures and rally more students to get involved. Chris is torn between wanting to dazzle several baseball scouts at an upcoming game and standing with his fellow students to show solidarity.

Daphne takes a volunteer job at a clinic for extra credit and comes face-to-face with her old mentor, Dr. Jackson. While eager to mend fences with him, she grows alarmed when it becomes obvious he’s having trouble properly treating his patients. Mingo leads the annual “Kangaroo Krawl,” but Daphne sees his foolhardy behavior as a reaction to the regretful costume party incident. Bay finds Noelle is plagiarizing her work and uses the discovery to negotiate her own chair. John and Kathryn make an effort to rekindle their romance. Regina is put in a precarious situation when she decides to expand her business.

A mysterious young woman has Bay and Daphne flooded with memories of their deceased father Angelo, and they must decide if they should let her into their lives. Toby is caught between his mother’s wishes to baptize his son Carlton and his wife’s feelings about faith. Melody asks her sons to make amends so the family can be together for her birthday, but it might be too late.

Needing to pay their electric bill, Bay and Daphne throw a “lights on” party at their apartment above the Cracked Mug but things go awry when Toby overhears two students making disability jokes. Toby and Bay’s high school frenemy Simone turns up looking glamorous and successful. Meanwhile, as Daphne and Chris get to know each other better, she starts to suspect that he’s hiding a big secret. Kathryn and Regina do some old-school snooping on Luca after Regina sees a questionable text on his phone.

Travis and Bay have dinner with his birth mom, but the reunion dredges up painful memories of his childhood assault. Daphne contemplates helping Chris cheat on a test. Regina gets paid an unexpected visit.

Kathryn becomes nostalgic when she realizes that it’s been five years since the switch was discovered and the two families started living together. As she searches for memories, Kathryn discovers a long buried family secret – stretching all the way back to the switch – that changes everything. Daphne competes against Mingo for a six-week paid internship in sports medicine. Bay is celebrated for her tattoo work in a magazine spread, but her struggle to prove herself as an artist to John threatens to destroy their relationship. Toby meets Amelia, a young woman with Down Syndrome who changes his perception about his son’s future. Melody, Emmett and Travis make some major decisions about their lives, and Regina takes a chance on love.