Bay and Daphne throw Nikki an impromptu bachelorette party while a call from Simone alters the course of Toby's bachelor party. Meanwhile, Kathryn is surprised at Jennice's extravagant wedding requests, and a change in their living situation leads Angelo and Regina to reevaluate their relationship.
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.