The last man on Earth sat in a room and there was a knock on the door.

Who could be knocking if you’re the last person on the entire planet?

The script was previously used on “Dimension X” on May 6, 1950.

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X Minus One – Knock

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This episode is based on the short story penned by legendary science fiction author Robert A. Heinlein. It’s an interesting variation on the theme of a once technologically advanced civilization falling on primitive times. Eventually a hero sees the possibility of a different future.

The tale is set on a huge slower-than-light spaceship originally headed for Centauris on a journey but now adrift in space for unknown reasons for hundreds of years. The descendants of the original crew form this primitive society and a religion around the ship’s documents they’ve inherited.

The script was used previously on Dimension X on November 26, 1950 and August 2, 1951.

X Minus One – Universe

Abby Lewis, Donald Buka, Edgar Stehli, Fred Collins (announcer), Ian Martin, Jason Johnson, John Seymore, Peter Capell, Robert Heinlein (author), William Griffis, George Lefferts (adaptor), William Welch (producer), Fred Weihe (director).

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“The universe never did make sense; I suspect it was built on government contract.” ~ Robert A. Heinlein

A genuine Martian hires an advertising agency to publicize a parade. Everyone loves a parade don’t they? And with the Martian paying a cool million bucks for the publicity this parade should be a doozy!! Do you think the mayor might even declare June 1st “Martian Day”?

The Martians are coming!

The Martians are coming!

The script was previously used on Dimension X on August 25, 1950 and subsequently again by X Minus One January 25, 1956. Nearly two decades later the script was dusted off for a production on Future Tense May 13, 1974.

X Minus One – No Contact

Alexander Scourby, Agnes Young, Joseph Curtin, Joe DeSantis, Ellen Denning, John Thomas, Arthur Anderson, Wendell Holmes, William Keene, Fred Weihe (director), Don Pardo (announcer), George Lefferts (writer, adaptor), Ernest Kinoy (writer), William Welch (producer).

Initially a revival of NBC’s Dimension X (1950-51), X Minus One is widely considered among the finest science fiction dramas ever produced for radio. The first 15 episodes were new versions of Dimension X episodes, but the remainder were adaptations by NBC staff writers, including Ernest Kinoy and George Lefferts, of newly published science fiction stories by leading writers in the field, including Isaac Asimov, Ray Bradbury, Philip K. Dick, Robert A. Heinlein, Frederik Pohl and Theodore Sturgeon, along with some original scripts by Kinoy and Lefferts.

Episodes of the show include adaptations of Robert Sheckley’s Skulking Permit, Bradbury’s Mars Is Heaven, Heinlein’s Universe and The Green Hills of Earth, Pohl’s The Tunnel under the World, J. T. McIntosh’s Hallucination Orbit, Fritz Leiber’s A Pail of Air and George Lefferts’ The Parade.

In this first episode, a sixth exploration ship, blasting off in 1987 for the planet Volta, approaches “The Galactic Barrier.” The vary barrier that the previous five ships have not returned from. Beware of the “Space Blues!”

The script (written by Kinoy and Lefferts) was used previously on Dimension X on April 29, 1950 and October 29, 1950 and then on The Chase on December 28, 1952.