Hayata is a member of the Science Patrol, an organization tasked with investigating bizarre anomalies. He is mortally wounded when accidently encountering an alien being from Land of Light, who grants Hayata new life as the two are merged into one. Now, whenever a threat arises that is too great for the Science Patrol to handle, Hayata activates the beta capsule and becomes the hero known as Ultraman.
The film consists of re-edited material from the original television series Ultraman. Episodes 1, 8, 26, and 27 were used for the film. They were narrated by Hikari Urano as an "Ultraman Documentary". Allegedly only one new scene was shot, and that some parts of the movie where shot in black and white for unknown reasons. The movie screened at the same time as the Toho movie King Kong Escapes.
A 1979 Japanese tokusatsu kaiju film produced by Tsuburaya Productions, consisting of re-edited material from the original television series Ultraman. Ultraman: The Great Decisive Battle was the 1st movie of the third Showa phase (Jissouji's Ultraman being first and Ultra Brothers vs. The Monster Army being second) and because of this Tsuburaya decided to make this a reunion of the last 12 Ultras (aside from Ultraman 80 which hadn't come out yet). Tsuburaya decided to give this a different tone than Jissouji's Ultraman, having more new scenes and appealing to the all-Ultra fan.
