Roger, the wisecracking extra-terrestrial who lives with Stan Smith and family, schemes to make money by dressing up as an amateur shutterbug and selling pictures of himself to the tabloids. When the CIA discovers there is an alien on the loose, they apprehend Roger at a newspaper office. They do not recognize him as the alien, however, and retain him to head up a special Alien Task Force. Overnight he becomes Stan's boss. He lords his position of power over Stan and uses the CIA expense account to fly around the world in search of his elusive target. Eventually Roger's antics catch up with him and Stan must think quickly to save him from the CIA.