When the police discover that a mob hitman has moved in next door to the Robbersons, they want to find out what he is up to. So they set up a stakeout in the Robbersons' home. Hard-nosed, tough-as-nails Jake Stone (Jack Palance) and his young partner Tony Moore (David Barry Gray) are assigned to the stakeout, but now it's a question of whether Jake can last long enough to capture the bad guys. The Robbersons want to help and by doing so, they drive Jake crazy.