Happy Days Season 4

Fonzie's former girlfriend Pinky Tuscadero comes to Milwaukee for an exhibition of her motorcycle skills and participate in a demolition derby. On seeing her again,Fonzie realizes that he's still in love with her and she as well. When Fonzie's partner for the derby is hurt, Pinky volunteers but Fonzie thinks a demolition derby is a man's world. Meanwhile, derby drivers The Millachi brothers are practicing sabotage at Fonzie's garage.