 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.