"The Invaders" is a science fiction television series that aired from 1967 to 1968. The show follows a man named David Vincent, who discovers that extraterrestrial beings are secretly infiltrating Earth. He struggles to convince others of the threat, as the aliens can disguise themselves as humans. The series explores themes of paranoia and the fear of the unknown. Each episode features Vincent trying to expose the invaders while facing skepticism from those around him. The show has gained a cult following and is often remembered for its suspenseful storytelling and unique premise involving aliens and conspiracy.