Miles Monroe enters the hospital in 1973 for a minor ulcer operation only to wake up 200 years later after being defrosted. As Miles tries to adjust to his new environment, he is re-programmed, de-programmed, chased by Big Brother-like police, and falls for Luna, an underground poet.

The fourth season of this classic groundbreaking series saw the beginning of one-hour episodes. This allowed for more elaborate and detailed stories which plunged viewers even further into the twilight zone.