After winning tickets to the World Series, Jimmy Dworski (James Belushi) walks out of his minimum security prison and starts hitchhiking to the big game. While in an airport, he discovers a leather datebook that belongs to Spencer Barnes (Charles Grodin), a wealthy corporate businessman who's just been dumped by his wife. At first, Jimmy wants to return it for a reward, but, when he realizes it's filled with credit cards, he decides to hold on to it for just a little longer.