UFO Abduction

Zane Ziminski is an astrophysicist who receives a message that seems to have extraterrestrial origins. Eerily soon after his discovery, Zane is fired. He then embarks on a search to determine the origins of the transmission that leads him into a Hitchcockian labyrinth of paranoia and intrigue.

Aliens from Outer Space are slowly switching places with real humans -- one of the first being a young man about to get married. Slowly, his new wife realizes something is wrong, and her suspicions are confirmed when her husband's odd behaviour begins to show up in other townspeople.

While planet Earth poises on the brink of nuclear self-destruction, a team of Russian and American scientists aboard the Leonov hurtles to a rendezvous with the still-orbiting Discovery spacecraft and its sole known survivor, the homicidal computer HAL.

The first manned expedition to Mars is invaded by an unknown life form, which stows away on the rescue ship.