Premise: Set in 1950s and 1960s Milwaukee, this series tells the story of the Cunningham family -- father Howard, mother Marion, son Richie and daughter Joanie. Howard owns a hardware store, while Marion stays at home. Richie's best friends are Potsie and Ralph. Arthur ``Fonzie'' Fonzarelli is the local bad boy, riding a motorcycle and filling his days with fixing cars and dating girls. During the show's run, Richie leaves home to join the U.S. Army.
S04, E01 (First Aired: Sep. 21, 1976)
Pinky Tuscadero returns to Milwaukee and finds her way back into Fonzie's heart.
S04, E02 (First Aired: Sep. 21, 1976)
The Malachi brothers sabotage Pinky's car the night before the demolition derby.