David Vincent knows that The Invaders, alien beings from a dying planet, have arrived to take over the Earth! To make matters worse, the aliens know who he is, and most of the time where he is. Somehow he must convince a disbelieving world that the nightmare has already begun.
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.
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.
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 schoolteacher discovers an usual device she is inexplicably attacked by locusts, and when Vincent investigates he encounters unusual resistance in a small town.
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.
David tries to unravel the mystery of a metal cylinder found at the site of a plane crash.
David and the invaders pursue a fisherman who found an alien weapon---proof of an invasion from outer space.
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 Vincent steals a computer tape in order to expose alien activity on Houston oil fields.
David tries to convince a priest that aliens are responsible for unseasonable hurricanes and the death of the cleric's friend.
When a woman who was found dead after she fell from a horse miraculously turns up alive and the man who discovered her corpse disappears, Vincent investigates.
A vicious dog convinces Vincent aliens are responsible for a friend's recent institutionalization for insanity.
Vincent learns crime syndicate members are searching for extraterrestrials to recover a shipment of stolen narcotics.
A high-ranking general asks Vincent to arrange a meeting with alien leaders to discuss peaceful coexistence.
Vincent has only 24 hours to prove a man recommended for appointment to an important post in the space program is an alien.
Witnessing an alien incineration at a religious shrine, a young woman believes she had a miraculous vision.
Two alien fugitives contact Vincent to ask for his help in stopping the invasion of Earth.
Vincent is accused of murder after an explosion kills a senator seconds after he delivered a warning about an alien's presence.
Complete episode guide for The Invaders with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
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