"National Lampoon's Vacation" is an iconic comedy movie that spawned four sequels and a rabid cult following. It tells the story of the Griswold family; a middle class family from the Illinois suburbs. The family's patriarch is Clark W. Griswold (Chevy Chase). He is married to the lovely Ellen Griswold (Beverly D'Angelo). The Griswold family includes two children, Russ and Audrey. Clark and Ellen have only one desire for the family's summer vacation, to go to the Wally World amusement park in California.
Clark goes car shopping for the perfect vehicle to take to Wally World. He makes a purchase, but a less than trustworthy car salesman persuades Clark to buy a "Family Truckster" instead. Despite the disappointment in the vehicle, the family happily departs on their cross country trek.
The Griswold's had no idea what awaited them on their journey. They come across a hot looking blonde (Christy Brinkley) who has her eyes on Clark. They also come across several other unexpected problems during their trip. They nearly get robbed of their belongings while lost in St.Louis. They also have a near death experience when Clark falls asleep at the wheel.
One of the scheduled stops on their vacation is to visit Ellen's cousin (Miriam Flynn) and her dim witted husband (Randy Quaid). While visiting the strange brood, they are told that they need to transport the cantankerous Aunt Edna (Imogene Coca) to Arizona. Aunt Edna also brings along her bite happy dog who takes an immediate disliking to Clark.
The Griswold family suffers several more problems and tragedies along the way. These issues de-motivate everyone in the family and they all want to just go home. Clark, however, is not dissuaded. He becomes obsessed with making it to Wally World and he will do anything that it takes to make it there.
The film co-starred Anthony-Michael Hall and Dana Barron as Russ and Audrey. Comedy veterans Brian Doyle-Murray, Eugene Levy and John Candy also make hilarious cameo appearances.