Scott Turner has 3 days left in the local police department before he moves to a bigger city to get some 'real' cases—not just misdemeanors. When Amos Reed is murdered, Scott sets himself on the case, but the closest thing to a witness to the murder is Reed's dog, Hooch, which Scott has to take care of—to avoid Hooch being 'put to sleep'.
Advertising executive Nick Beame learns that his wife is sleeping with his employer. In a state of despair, he encounters a bumbling thief whose attempted carjacking goes awry when Nick takes him on an involuntary joyride. Soon the betrayed businessman and the incompetent crook strike up a partnership and develop a robbery-revenge scheme. But it turns out that some other criminals in the area don't appreciate the competition.