After the "Snobby hatte Shoppe" closes for the night, a mouse comes out of his hole and looks to see if the coast is clear. He turns on the lights and then calls his other mouse friends out to party. His girlfriend leaves the hole last, watched by a jealous rat. When the couple take a break from dancing, the rat kidnaps her. Her boyfriend rallies his friends to find her. The mice under each type of hat in the store adopt the personalities the hats suggest, such as farmers, firemen, or soldiers. A "blind" mouse points the way to the kidnapper and the hero saves his girlfriend. The face shield of a knight's helmet serves as jailbars for the rat. Soon our happy couple marry, wearing an enormous top hat and veil.