Donna and Michael are getting married. But first, they have to plan the reception, get the tux, buy the rings, and cope with their own uncertainty about the decision. Michael fears commitment. Donna has her doubts about Michael's immaturity. Both are getting cold feet.

In the fall of 1963, Eddie Birdlace is an 18-year-old Marine Corps volunteer who is about to ship out with three of his buddies for a tour of duty in Vietnam. Planning a massive blowout for their last night in San Francisco, Eddie, his buddies, and a number of other Marines set up a contest they call a "dogfight”.