Astronauts Taylor, Landon and Dodge are in deep hibernation when their spaceship crashes into a lake on an unknown planet after a light-speed voyage. They discover their fourth crew mate, Stewart, dead due to a malfunction. The three abandon their ship when it starts sinking; Taylor remains on board long enough to see that the date is November 25, 3978, two thousand and six years after their departure in 1972. The astronauts set off through...