Set fifteen years in the then-future year 1983, the series tells the tale of the crew and passengers of a sub-orbital transport ship named Spindrift. In the pilot episode, the Spindrift is en route from Los Angeles to London, on an ultra-fast sub-orbital flight. Just beyond Earth's boundary with space, the Spindrift encounters a magnetic space storm, and is dragged through a space warp to a mysterious planet where everything is twelve times larger than on Earth, whose inhabitants the Earthlings nickname "the Giants". The Spindrift crash-lands, and the damage renders it inoperable.
The worst episode of "Land of the Giants" is "The Inside Rail", rated 6.4/10 from 63 user votes. It was directed by Harry Harris and written by Richard Alan Shapiro. "The Inside Rail" aired on 10/5/1969 and is rated 0.1 point(s) lower than the second lowest rated, "Graveyard of Fools".
Fitzhugh tries to use his gambling expertise to pick the winners at a local racetrack, but has to enter into a deal with a giant to do so.
Director: Harry Harris
Writer: Richard Alan Shapiro
The Earthlings become involved with twin brothers who are plotting to take over the planet.
Director: N/A
Writer: N/A
Barry and Valerie are carried off in a balloon to a distant land ruled by a malevolent dictator.
Director: Nathan H. Juran, Sobey Martin
Writer: William Welch
The Earthlings become involved with a superstitious Irish Giant who believes they're leprechauns.
Director: Sobey Martin
Writer: Jackson Gillis
Fitzhugh is captured by the owner of a wax museum who is involved in a stolen-diamond racket.
Director: Sobey Martin
Writer: Arthur Weiss
The Spindrift come to the aid of a has-been horror actor but during his comeback movie they find themselves in danger from his enthusiastic director.
Director: Harry Harris
Writer: Richard Alan Shapiro
This time around, four punk kids from Earth run up against the Spindrift crew.
Director: Harry Harris
Writer: Esther Mitchell, Bob Mitchell
Mark is framed for the murder of two Giants and begins acting suspiciously, turning his crewmates against him.
Director: Harry Harris
Writer: William L. Stuart
The Earthlings aid an injured puppeteer by pretending to be his dancing puppets, but the owner soon suspects they are involved and prepares to capture them for the reward.
Director: Sobey Martin
Writer: William Welch
Barry and Fitzhugh are captured by giant Gypsies.
Director: Sobey Martin
Writer: Charles Bennett
The Earthlings try to salvage radium from a clock but find themselves at the mercy of giant scientists using a sound detector to home in on them.
Director: Sobey Martin
Writer: Jack Turley
Two time travellers from 5477 come to the Land of the Giants to conquer Earth.
Director: Harmon Jones
Writer: William Welch
While working with a helpful Giant scientist, the Earthlings are subjected to radiation which causes strange hallucinations.
Director: Nathan H. Juran
Writer: William Welch
A sadistic child unleashes his mechanical toys on the hapless Earthlings.
Director: Harry Harris
Writer: N/A
A giant escaping convict takes the Spindrift but then wanders into quicksand, endangering everyone.
Director: Sobey Martin
Writer: Stanley H. Silverman, Robert Lees
When the giants increase their search efforts, the Earthlings must increase their salvage efforts and end up captured by a giant and his daughter.
Director: Harry Harris
Writer: N/A
The Earthlings come to the aid of a giant magician.
Director: Sobey Martin
Writer: Esther Mitchell, Bob Mitchell
The Earthlings become involved in a scientist's scheme to build an indestructible android.
Director: Harry Harris
Writer: William L. Stuart
The Earthlings come to the aid of a convicted criminal who has been falsely accused.
Director: N/A
Writer: Daniel B. Ullman
The Earthlings become involved in a sabotage scheme to destroy the nearby city.
Director: Harry Harris
Writer: Daniel B. Ullman
The Spindrift crashes on the Land of the Giants and its crew and passengers quickly find themselves in a struggle for survival.
Director: Irwin Allen
Writer: N/A
When a giant hobo is framed for murder, the Earthlings come to his aid.
Director: Harry Harris
Writer: Mann Rubin
The Spindrift crew find an amnesiac Earthling, Joe, but it turns out to be a ploy by giant crooks to get hold of the ship's power supply.
Director: Harry Harris
Writer: Peter Packer
An amnesiac Fitzhugh falls in with two giant thieves and becomes their willing accomplice.
Director: Harry Harris
Writer: Esther Mitchell, Bob Mitchell
Mark is roped into helping two giant scientists build a spaceship that can return them all to Earth.
Director: Sobey Martin
Writer: Arthur Weiss