Back from a soul-searching trip to Iceland after his failed marriage, Toby returns with a new perspective on life and a surprising new aspiration for his career. Bay's college dreams are knocked for a loop when she doesn't get the news she expected. Angelo helps Daphne redirect her senior year stresses with a baking challenge. Meanwhile, Regina's participation in the East Riverside project brings her to yet another moral crossroad.
Switched at Birth tells the story of two teenage girls who discover they were accidentally switched as newborns in the hospital. Bay Kennish grew up in a wealthy family with two parents and a brother, while Daphne Vasquez, who lost her hearing at an early age due to a case of meningitis, grew up with a single mother in a poor neighborhood. Things come to a dramatic head when both families meet and struggle to learn how to live together for the sake of the girls.