A cross-country road race is based on an actual event, the Cannonball Baker Sea to Shining Sea Memorial Trophy Dash, organized by Brock Yates to protest the 55 mph speed limit then in effect in the U.S. The Cannonball was named for Erwin G. "Cannonball" Baker, who in the roaring 20's rode his motorcycle across the country. Many of the characters are based on ruses developed by real Cannonball racers over the several years that the event was run.
The original characters from the first Cannonball Run movie compete in an illegal race across the country once more in various cars and trucks.
Little known actor, Jack Noah, is working on location in the dictatorship of Parador at the time the dictator dies. The dictator's right hand man, Roberto, makes Jack an offer he cannot refuse.. to play the dictator. Jack's acting skills fool the masses but not close friends and employees of the dictator.
Max Washington has just been released from prison after serving time for burglary. He returns to his old hangout, a hoofer club. His old girl friend, Amy, who still works at the club as a Tap instructor, is less than thrilled to see him. Her father, Little Mo, is happy to see him, because he has plans for a show involving Max. In addition, Max's old partners in crime have another job for him.