The Griswold family's cross-country drive to the Walley World theme park proves to be much more arduous than they ever anticipated. SPONSORED BY THE FOLLOWING: BEST DAM 5K CATSKILL DANCE MOVES AND AND ICO COMPUTER REPAIR
When Joanna Drayton (Katharine Houghton), a free-thinking white woman, and black doctor John Prentice (Sidney Poitier) become engaged, they travel to San Francisco to meet her parents, Matt Drayton (Spencer Tracy) and his wife Christina (Katharine Hepburn).
Nicholas Collini (Desi Arnaz) has to travel for his job as an engineer -- so his fiancée, Tacy (Lucille Ball), suggests that rather than buy a house after their wedding, they invest in a motor home so they can see the country together. But the aggravations of life with nosy trailer park neighbors and the dangers of piloting an enormous trailer across narrow country roads soon take their toll on the happy couple, putting their young marriage in turmoil.