Fonzie shocks his friends when he throws his leather jacket away after finding a note taped to the bottom of the old cookie jar that held the last three cookies his mother baked for him before she deserted him...until he finally tells them why.
It seems like a bad fit when Yale-educated Roger Phillips is hired over street-savvy Fonzie as the new principal of the George S. Patton Vocational High School, known for it's rampant juvenile delinquency.
Howard's fear that wife Marion's former college boyfriend will sweep her off her feet when he comes to the Cunninghams for dinner turns to shock when the man instead shows interest in...daughter Joanie!
Fonzie begins restoring a wrecked 1955 Chevrolet convertible, unaware it comes with more than just broken seats, a broken engine and a rusted shell. It comes with a beautiful young woman, to whom there's more than meets the eye.
Joanie primps and Chachi nervously paces as their family and friends gather on their wedding day, while Fonzie and Howard try to convince a by-the-book adoption administrator that some rules are meant to be broken.
Fonzie, Roger and Chachi soon regret agreeing to help Howard Cunningham save his Grand Poobah position by becoming new Leopard Lodge recruits when they find out their pledge master is prankster Potsie "Sabu" Weber.