"The Squire of Gothos" is an episode of the original science fiction television series, Star Trek. It was first broadcast by NBC on January 12, 1967, and repeated on June 22, 1967. It is the seventeenth episode of the first season, and was written by Paul Schneider, and directed by Don McDougall.

In this episode, a powerful being torments the crew of the Enterprise.

On stardate 2124.5, the Federation starship USS Enterprise, under the command of Captain James T. Kirk, is on an 8-day supply mission to Colony Beta VI. Along the journey, the ship encounters a rogue planet in a "star desert" and described as being "in some sort of light warp" (preventing it from being detected sooner by the Enterprise).

Without the time to really stop and investigate it, Kirk orders the planet to be recorded for a future exploration mission and to continue with their original heading. When Lt. Sulu attempts to enter a course around the planet, he suddenly vanishes from the bridge. Kirk also vanishes moments later.

First Officer Spock believes that the two must have been taken to the mysterious planet below even though sensor readings indicate the planet's atmosphere is lethal to most forms of life. The Enterprise then receives a strange message on a viewscreen in blackletter writing, "Greetings and Felicitations!", after the Enterprise responds, a follow up message is sent "Hip hip hoorah. Tallyho!" Spock orders Chief Medical Officer Dr. McCoy, along with Lt. DeSalle and geophysicist Karl Jaeger, to form a landing party and conduct a search.

The landing party beams down and finds the area to be a lush and breathable environment, contradicting Jaeger's original scans that the world was barren and couldn't support life. They also come across what appears to be a medieval castle constructed in the middle of nowhere. They find Captain Kirk and Lt. Sulu immobilised, just before discovering a brash and impetuous being who identifies himself as "General Trelane, Retired" who soon returns Kirk and Sulu back to normal. McCoy's medical tricorder does not get any readings from Trelane and according to the scanner nothing is there. Trelane invites everyone to stay as his guests on his world he calls Gothos and discuss his favorite subject: the military history of Earth.

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