A free-wheeling Air Force corporal has a series of romantic flings while stationed in England. His love for gambling on the horses lands him in big trouble when he racks up enormous debts. The only way to pay them is to go AWOL, but in doing so knocks out a sergeant. Believing he killed him, he takes off with his girlfriend on her brother's motorcycle and head toward the coast. Stopping at a small café they encounter another young couple. Both men are dressed alike and are driving the same type of motorcycle so when it is time to leave the women climb aboard the wrong bikes. A series of amusing and complicated situations ensue in this classic British comedy of errors.