Accompanied by a navigator, three deep-freeze hibernauts, and the computer that guides him, David Bowman sets out in the spaceship Discovery to investigate a planet that may be inhabited by alien creatures.
Two frightened navigators, three frozen hibernauts, and a talkative copmuter named Hal ride on the spacecraft Discovery, hoping to unravel the mystery of a crystal monolith left on the moon by alien intelligence.
The spacecraft Discovery journeys to the outer edge of the solar system, and two navigators become uneasy when Hal, the craft's talking computer system, demonstrates unusual behavior.
