A set of muscle-bound twins get a job protecting a pair of mischievous ten-year-old twins from bad guys out to gain vengeance on their uncle.

Identical twins Peter and David (the Barbarian Brothers) are a couple of waiters who have always dreamed of opening a restaurant. But then they cross paths with Frank Hillhurst (George Lazenby), a corrupt businessman, who is about to turn states evidence. They end up saving his life, so grateful Hillhurst hires Peter and David -- for more money than they've ever seen -- to protect his twin nephews from a crook who do anything to prevent Hillhurst from testifying against him. But the twin boys prove to be a couple of monsters, and Peter and David start thinking that no amount of money is enough to make them put up with this.