His broadcast to the world about the aliens is widely believed to have been a UFO hoax due to his dismissal from NASA (this despite Earth continuing to have record temperatures).

This group of five consists of three scientists, Zane's step brother Jack Addison (a computer expert whom he has not seen in seven years), and a reporter named Bridget Riordan.

They receive papers talking of global warming and of aliens terraforming Earth into a planet that is hot, like their own dying world.

He sets off a metal sphere (a "black hole bomb" or BHB as it rises into the air, revolves then sucks everything in a large area into it, causing it to vanish permanently).

The alien and one of the men, Tom Billings, are sucked into the BHB's area of influence as well as the contents of the room but Addison, Riordan, and Zarcoff manage to escape.

Zarcoff in his hotel room is killed by an alien metal spider machine which injects him, making it look like his death was from a heart attack.

Addison uses his computer skills to walk around and interact with an alien ship in space and to program a giant BHB deep below the power plant to go off in one hour.

The film ends with the married couple driving to Alaska and it is just beginning to snow as they cross the border, which suits them fine.