[3] The success of the series in the US would inspire the creation of a follow-up production there, resulting in Ultraman: The Ultimate Hero.

Jack Shindo and Stanley Haggard are members of the first crewed expedition to Mars, and on the red planet find a giant sluglike monster, Gudis.

Suddenly the alien giant, Ultraman Great, arrives and fights Gudis, but is knocked down for a period.

It is then that Ultraman Great gets up and when he is on the verge of victory, Gudis metamorphoses into a virus and travels to Earth, where it plans on corrupting all life, mutating other creatures into monsters and awakening existing ones.

Needing a human host to survive on Earth, Ultraman Great joins with Jack, allowing him to become the colossal alien when all seems lost.

In the series finale, a doomsday scenario begins with the appearance of two powerful monsters, Kilazee and Kodalar, both of which try to wipe out the human race for abusing it.

It was re-released in 2007 as part of Nippon Columbia's "ANIMEX2000" series of inexpensive album reissues, under stock number COCC-72238.

The figures were 10" tall and included Ultraman, who came with a mini Jack Shindo, as well as his enemies Bogun, Barrangas, Majaba, Gerukadon and Kilazee.

Also released was a toy of the Hummer vehicle which included a mini figure of Charlie Morgan.

Sachs Family Entertainment distributed the show for American television via weekly syndication between 4 January 1992 and 28 March 1992.

[11] In Spain, this series aired on TVE-1 (is currently La 1) alongside several other Ultramen shows, under the collective title of Ultraman.