A dying astronaut volunteers his mind be linked to a supercomputer, to enable the U.S. to beat the Soviet Union to Mars. His wife and an Air Force psychiatrist oppose the brain removal, fearing that the arrogant spaceman's brain won't adapt, making his death futile. But the Cold War space race takes precedence, so the experiment proceeds, despite eerie developments.
When a test pilot crashes in his experimental X-15 plane, he and his wife discover they are in a reality where time has slowed down almost to a standstill. Returning to the airbase, they are horrified to see their daughter standing in the path of a moving truck and they seem to be unable to prevent her death.
When an airplane crashes into the sea, its crew awake to find themselves inside a large metal chamber. Soon their bewilderment is replaced by fear when they come under attack by a huge machine and large blob-like creature.