Tom and Jerry are serving in the army with Buck Private Tom serving in the Mess Hall. The Chef is cooking up some grub when Jerry runs in and eats what the Chef just cooked. The Chef is furious that Tom is sleeping and reminds a frightened Tom his orders are to keep the mouse away and the mess hall clean which Tom has failed to do. After a few threats from his Superior, Tom is up and at it cleaning the Mess Hall, but Jerry is there to foil his progress.