Carlos has failed in show-biz and currently works as a waiter in a Mexican restaurant. There he meets Alex and dumb footballer Bruce celebrating their engagement with her parents. Alex' father is less than thrilled of her fiancée and says he'd rather accept anybody else. Eventually Alex hires Carlos to present him as her new fiancée.

The dashing Captain Hugh "Bullshot" Crummond - WWI ace fighter pilot, Olympic athlete, racing driver, part-time sleuth and all round spiffing chap - must save the world from the dastardly Count Otto van Bruno, his wartime adversary. And, of course, win the heart of a jolly nice young lady.

When odd reports are received through official channels stating that the President of the United States is being held captive on a secret international moon base called Vegan and that he has been replaced on Earth by a clone, the US Marshall Service immediately sends their 'best' man, Dix, on the mission.