The score was composed, as was most of the music for all Rankin/Bass specials and series, by Maury Laws, while the title song "He's the Last Dinosaur", with lyrics by Jules Bass, was sung by Nancy Wilson, and arranged and conducted by Bernard Hoffer.

Following one expedition, only one man, geologist Chuck Wade, returns; he explains that the drill was going through a routine check in the icecaps when it surfaced into a valley super-heated by a volcano.

He brings with him Wade, Bunta, a Maasai tracker, Dr. Kawamoto, and Frankie Banks, a Pulitzer Prize-winning photographer selected by the press pool.

Matson is initially unwilling to let Frankie join the crew, but she manages to convince him to allow her on the expedition by seducing him.

After a few months pass, the group is now living in a cave and has a number of encounters with cavemen in the area, but are able to turn them away with a handmade crossbow.

Screenwriter William Overgard pitched to ABC a TV movie about a hunter who travels back in time to kill a dinosaur.

ABC rejected the idea in favor of a rock musical remake of King Kong.

While the film featured mostly an English-speaking cast, a Japanese dub was created for the television release in Japan.

The Tyrannosaurus suit was created by Tsuburaya Production, portrayed by Toru Kawai, who played Godzilla in Zone Fighter and Terror of Mechagodzilla.

The T-rex suit was later used for Ururu of the tokusatsu/anime combination TV series Dinosaur War Aizenborg.

The front end of the Triceratops suit was portrayed by Tatsumi Nikamoto, who acted opposite Kawai as Zone Fighter and Titanosaurus in the two works, respectively.

This release uses an anamorphic 1.78:1 widescreen transfer of the unedited 106-minute theatrical release prepared by U.S. rights holder Warner Bros., and also contains a 13-minute interview with visual effects director Kazuo Sagawa, a photo gallery (which includes storyboards, production designs, and behind-the-scenes photos), a 15-minute behind-the-scenes production reel narrated by Sagawa, and the original Japanese theatrical release trailer.