After being found up in a plane with a girl and a bottle of champagne, trainee Air Force pilot Jimmy Garrett is demoted in disgrace and assigned to a research program run by the Strategic Weapons Division where he is given the job of training chimpanzees in the use of flight simulators. There he becomes attached to Virgil, one of the chimps, and comes to realize that Virgil can speak sign language. Investigating, he finds that Virgil was raised in a university animal behaviour program before its funding fell through. But then Jimmy discovers that the flight simulator training is being conducted in readiness for an experiment where the chimps are going to be subjected to lethal doses of radiation in order to see how long pilots can continue flying after passing through a nuclear blast. And so he joins with Virgil's trainer Teresa McDonald to save Virgil from his intended fate. The acting was pretty fine, but the monkeys were the stars, they were perfect.