David tries to convince a priest that aliens are responsible for unseasonable hurricanes and the death of the cleric's friend.

David Vincent steals a computer tape in order to expose alien activity on Houston oil fields.

David tries to shut down the aliens' indoctrination school with the help of a hard-luck pilot, who has sold out to the invaders.

David and the invaders pursue a fisherman who found an alien weapon---proof of an invasion from outer space.

David tries to unravel the mystery of a metal cylinder found at the site of a plane crash.

Vincent is summoned to an army base where he uncovers a conspiracy concerning an Invader plot to hijack a nuclear weapon test and kill millions of innocents.

When a schoolteacher discovers an usual device she is inexplicably attacked by locusts, and when Vincent investigates he encounters unusual resistance in a small town.

When a 'man' is spotted glowing in a transparent tube, the story makes the papers leading Vincent to discover a corporation has made a deal with the Invaders.

When a cop witnesses one of the alien invaders he becomes catatonic and Vincent must try to thwart the Invaders' attempts to silence him for good.

David Vincent pulls his car over to take a nap late one night only to be awoken by a spaceship landing nearby. However, he struggles to convince anyone of his story.