Jackie breaks her tooth during lunch at the beach club, but a nearby dentist comes to her rescue. He asks her out, then reveals that he is Mel Silver--David's father. Kelly is mortified when the pair hits it off, and imagines life as David's step-sister. She determines that she must break up the couple, and behaves rudely during a dinner. Kelly breaks down in tears and explains that she is afraid of losing her mother. She apologizes to Mel and helps David deal with the realization that his parents won't reunite. Andrea goads Brandon into spending time with a fatherless boy from the youth center. Brandon develops a friendship with the boy, then discovers that his mother is beating him. He grapples over whether to report the abuse. Brenda cannot stop thinking about Dylan while he is away in Hawaii. Music: 'Summertime' by the Troggs.