A man working as an assistant in a police station really wants to be a cop, but can't make it through the obstacle course. One day, after an accident, a scientist fixes him up with some animal organs. This produces a remarkable change in him, as he now has animal strengths -- and instincts to match. He gets to join the police, and gets a date with a pretty animal-lover. Much of the humour comes from watching him do typical doggie things, some of which are pretty gross.