Bob McGraw is in his 12th year of college, goofing his way through life. Bob, Irwing, Gonzer and Max are the four losers forced and bribed to represent their university in an intercollegiate raft race. Forced and bribed into this role, they make some friends, the lovely Heather Merriweather, but mostly enemies, among others a whole team of marines, and preppy IVY-leaguers determined to win.

A sorority house mother enters her girls in a mud-wrestling contest.

A librarian devotes her life to caring for her wheelchair-bound tyrannical father after being stood up at altar. She fantasizes his death and finds joy only with her pet monkey. When the monkey disappears, a shocking past is revealed.

After his kid brother is killed in a street race, a champion drag-racer quits racing. However, a new kid comes to town determined to force him back into racing so he can take his title--and he's already taken his girlfriend.When his younger brother, Steve, is killed racing a hot-rod, Jeff Northup blames himself for the accident since he had built the car for his brother and had encouraged him to race it, with other boys on a special course provided by police detective Ben Merrill, who is working to reduce the city's hot-rod fatalities by providing supervision for the dangerous hobby. Jeff withdraws from participating in races on Merrill's course and, without his leadership, reverts to racing on the streets. "Bronc" Talbott, a newcomer, makes a play for Jeff's girlfriend, Lisa Vernon. Eventually, the taunting-Talbott forces Jeff into a race which results in the death of a bicycling child, and evidence seems to indicate Jeff was at fault.