Richie, Ralph and Potsie decide that they are going to have some fun on the weekend because Richie's family are out of town and they have the house to themselves.
They are all set for a fun weekend but when there is a knock at the door and they find three young, beautiful girls standing there, they think they have died and gone to heaven!
It turns out that the girls' car has broken down and they are stranded so the boys, after some fast talking, get them to agree to spend the night while Fonzie does his best to fix their car. The boys think they really have it made but all of the girls are far too sophisticated for them and find the boys awqward behaviour amusing. A lesson is learned about girls, behaving like adults and, of course, acting like gentlemen.