Damien the Antichrist, now about to turn thirteen years old, finally learns of his destiny under the guidance of an unholy disciple of Satan. Meanwhile dark forces begin to eliminate all those who suspect the child's true identity.
The world is shocked by the appearance of three talking chimpanzees, who arrived mysteriously in a U.S. spacecraft. They become the toast of society, but one man believes them to be a threat to the human race.