- Directors: Michael Anderson
- Producers: Saul David, Hugh Benson, Unit Production Manager Byron Roberts
- Writers: William F Nolan, George Clayton Johnson, David Zelag Goodman
- Genres: Drama, Fantasy, Romance, Sci-Fi
- Actors: Michael York, Richard Jordan, Jenny Agutter, Peter Ustinov, Farrah Fawcett
The film begins with an on-screen preamble:
Within a domed city, Logan 5 (Michael York) watches as an infant’s hand is implanted with a crystal. The crystal is the baby’s Lifeclock; it changes colour as a person ages. As someone approaches their “Last Day” the Lifeclock begins to blink red, and finally turns black. Logan is a Sandman, responsible for hunting down and killing Runners, people who refuse to report to Carrousel when their Lifeclock begins to blink. Logan is accompanied by his fellow Sandman and friend Francis 7 (Richard Jordan).
The two witness a Carrousel ceremony. In Carrousel, there is the hope of Renewal, a belief that if they have obeyed the rules faithfully, they may be reincarnated. If anyone disobeys, they are “finished forever.” The participants assemble in an arena, then appear to be vapourized while the audience cheers, shouts and chants “Renew!” Although neither Logan nor Francis have known anyone to Renew, Francis believes that Sandmen Renew. After killing a Runner with Francis, Logan gathers the Runner’s personal effects which include a small, silver ankh.
At home searching for some recreational sex, Logan summons someone from “The Circuit” â€” this is how he meets Jessica 6 (Jenny Agutter), who wears a collar with an ankh pendant. After discussing with Logan why it’s wrong to run, Jessica leaves, deciding not to have sex with him.
Logan and Jessica journey to the city to tell the inhabitants what they’ve learned, and invite the old man to join them. Outside the city domes, the old man waits as Logan and Jessica enter the city. They reach the crowds as they gather for Carrousel and try to explain that they don’t have to die. Logan and Jessica are arrested by several Sandmen and brought before the Sandman central computer for interrogation. Logan resists, but the computer system accesses his mind. When the computer asks if Logan found Sanctuary, his subconscious mind replies that Sanctuary does not exist. This information runs contrary to what the computer considers fact, leading it to decry it as “does not program.” The computer redoubles its efforts to hack into Logan’s mind, diverting increasing power to the interrogation, but continues receiving contrary information from Logan. This causes a cascade failure of cognitive dissonance as a series of chain reactions cause explosions, blasting parts of the city seals open. The populace flees, and the young citizens meet the first old man that they have ever seen.