An eighteen-foot grizzly bear figures out that humans make for a tasty treat. As a park ranger tries rallying his men to bring about the bear's capture or destruction, his efforts are thwarted by the introduction of dozens of drunken hunters into the area.

In 1958, two teenagers take their pride and joy, a hopped-up Chevy, and start a cross-country journey to enter it in the National Championship drag races in California. Along the way they hook up with a pretty but dingy waitress who quits her job and hops in their car--and turns out to be more trouble than they thought--drag-race a gang of town punks who lose to to them and then accuse them of cheating, and come up against a local cop who is obsessed with putting these two "juvenile delinquents" in jail.