In light of Kimmy's upcoming pool party, DJ begins a crash diet and overexerts herself exercising. When Stephanie notices the problem, DJ swears her to secrecy, but the secret is out when DJ collapses during a family outing to the gym.
The Tanners invite Cindy and Rusty over again for a backyard barbecue. Rusty writes a phony love letter which causes confusion as each member of the household reads it in turn, all believing it to be from a different person.
Steve Urkel comes to town. He helps Stephanie deal with her new glasses, but when she takes all of Joey's funny glasses and disrupts the class with them, she realizes she took it too far. Jesse is also having trouble deciding a best man for his wedding.
Michelle gets a hard lesson in proper fish care when she gives her new goldfish, Martin, an actual bubble bath and things go belly-up. Meanwhile, Becky teaches the gang to square dance.
Danny dates a college student. At the same time, D.J. graduates from junior high and Michelle graduates from preschool. Stephanie feels left out of the graduation festivities, so the family tries to cheer her up by making a graduation ceremony for her.
