In the third instalment of the Vacation series the Griswold family decide to spend the Christmas season at home. Needless to say it is not as quiet as they had planned. Unexpected relatives and a catalogue of disasters create enough pandemonium to keep them busy.

Collection of four comedies following the Griswold family's vacations. In 'National Lampoon's Vacation' (1983), the West Coast Wally World theme park is the Griswold's holiday destination, and they intend to drive there cross-country all the way from their Chicago home. Father Clark (Chevy Chase) has planned the trip down to its last detail, but the trouble begins as soon as they hit the road. In 'National Lampoon's European Vacation' (1985), the family win a holiday to Europe. Contrary to their expectations, however, it is not a luxurious, all-expenses-paid kind of trip, but rather a cut-price, economy deal which takes them to some of the Old World's seedier locations. Of course, it's not long before they are caught up in all manner of misadventures. In 'National Lampoon's Christmas Vacation' (1989), the Griswolds decide to spend the Christmas season at home. Needless to say, it is not as quiet as they had planned. Finally, in 'Vegas Vacation' (1997), the clan head for the gleaming lights of Las Vegas. Unfortunately, Clark is soon transformed into a compulsive gambler, daughter Audrey (Marisol Nichols) becomes an exotic dancer and son Rusty (Ethan Embry) begins posing as a suave high roller.

Every year the ant colony of a tiny island are forced to hand over their midsummer grain to a marauding band of grasshoppers, led by the evil Hopper (voiced by Kevin Spacey). Worker ant Flik (Dave Foley) sets off to get help from the big city, where he mistakes a troupe of circus bugs for fierce warriors. After being fired by their ringmaster, P.T. Flea (John Ratzenberger), the bugs accompany Flik back to his home, thinking that he is a talent scout. When all becomes clear, they are less than happy at the prospect of fighting off Hopper and his gang!