- Senior year means big changes for Bay and Daphne, as the Carlton School for the Deaf receives an influx of hearing students who are not happy to be there.
- Daphne begins working at a free clinic as part of her probation from the Senator Coto blackmail scandal, and bonds with a pre-med student (guest star RJ Mitte, "Breaking Bad") with a spinal injury.
- Bay is inspired by her art teacher (guest star Sandra Bernhard, "Roseanne") and surprised by her jock classmate (guest star Max Adler, "Glee"), when she takes an art class at a local college.
- Toby tries to unite a divided Carlton by coaching girls' field hockey, and Kathryn dips her toes into new territory when she makes friends with a gregarious tap dancer (guest star Alec Mapa, "Ugly Betty").
"Drowning Girl" was written by Lizzy Weiss and directed by Jim Hayman.
"Switched at Birth" is executive-produced by Lizzy Weiss ("Blue Crush"), Paul Stupin ("Make It or Break It") and John Ziffren ("Melissa & Joey," "Make It or Break It"). The series stars Katie Leclerc as Daphne Vasquez, Vanessa Marano ("Gilmore Girls") as Bay Kennish, Constance Marie ("George Lopez") as Regina Vasquez, D.W. Moffett ("Friday Night Lights") as John Kennish, Lea Thompson ("Back to the Future," "Caroline in the City") as Kathryn Kennish, Lucas Grabeel ("High School Musical") as Toby Kennish, Sean Berdy as Emmett Bledsoe, with guest star Marlee Matlin ("The West Wing").
Source: ABC Family