Howard and Chachi go above and beyond to try to win a dinner with the Lone Ranger for Fonzie's birthday while the Fonz begins to wonder if he should start thinking about settling down with just one girl.

When his parents send his rebellious, younger brother, Flip, for a visit, Roger needs his friends' help to find out why Flip behaves so irresponsibly and the two always seem to be at odds with each other.