When Deidre can't quit her job for a week, she asks Cedric to fill in so Steve and two of his former singing partners must find a fourth voice before their group performs at an oldies show. Meanwhile, the students get a lesson in parenting and asks Steve to be their assistant. Steve has a hard time not being the center of attention, but when Angela and Regina shows him that he can assist her, he decides to help Cedric. Don finds it hard to talk to a girl in Steve's classroom named Evangeline.