Happy Days - Season 10 - Eps 5: Little Case of Revenge
Fonzie receives a good citizenship award from the Milwaukee Chamber of Commerce, but the ceremony is interrupted by a disgruntled childhood classmate of the Fonz who's been waiting 17 years for his revenge. They agree to settle their differences, but Ashley asks Fonzie to promise not to fight.
About Happy Days

Title: Happy Days
First Air Date: 1974-01-15
Last Air Date: 1984-09-24
Status: Ended
Rating: 7.7/10 (from 274 votes)
Language: EN
Seasons: 12
Total Episodes: 252
Network: ABC
Genres: Comedy
Production Companies: Miller-Milkis Productions
Synopsis
In 1950s Milwaukee the Cunningham family must contend with Fonzie, a motorcycle riding Casanova.
Cast

Henry Winkler
Arthur Fonzarelli

Tom Bosley
Howard Cunningham

Marion Ross
Marion Cunningham

Anson Williams
Potsie Weber

Scott Baio
Chachi Arcola

Ted McGinley
Roger Phillips

Erin Moran
Joanie Cunningham