Richie Cunningham and his friend Potsie face life at Jefferson High in Milwaukee Wisconsin in the 1950s. Originally fifth-billed Fonzie moved up steadily, finally into first billing in 1980, as the thumbs-up, "Heyyy!" biker increased his own and show's popularity. Lots of changes over time as kids come and go, new series spin off, Richie and pals go to college then the army. Even marriage.