In the bleachers at Chicago's Wrigley Field, die hard Cub fans root for their team. The group includes a rabid cheerleader, a blind man who follows the game by transistor radio and does his own play by play, a bathing beauty, a nerd and various other bleacher denizens. As the game proceeds, they bet among themselves on every conceivable event, go out for frosty malts or beers, try to pick up the bathing beauty and, occasionally, watch the game. The Cubs inevitably blow it in the ninth and the villainous Marvin, who always bets against the Cubs figuring he can't lose, cleans up. The bleacher bums remain undaunted they will be back tomorrow to root for the home team.