Jerry lives in a wall separating a duplex. The mouse holes on both sides of the wall allow him to visit either living area, but they also leave him vulnerable to the two cats who live opposite each other. Luckily for Jerry, neither Tom nor his orange counterpart know of the other's existence. That gives him the opportunity to pit one against the other without the cats even knowing. Jerry tricks Tom into reaching into his hole with a flyswatter; and, as the wily mouse planned it, Tom hits the orange cat with great force. The fly-swatted feline, imagining a muscle-bound mouse, throws his fist through the hole and socks Tom across the room. Poor Tom imagines his longtime enemy to be an even more muscle-bound rodent. The fighting continues with a spear gun, a cannon, a stick of dynamite and a pair of grenades, each cat doing all the damage to his feline confrère rather than the intended target.