The Gorenger try to retrieve rocket plans stolen by the Black Cross as Daita meets a mysterious girl he saves from them. This is a theatrical version of episode 36 of the Himitsu Sentai Gorenger television series.

When Magman makes a blunder that finally makes him lose the Black Cross Furher's trust, he begins a rampage against EAGLE with Navarone Fortress, the Gorenger must finally stop them. It features the destruction of Volcano Mask General Magman and his Mobile Fortress Navarone, as well as the Gorenger Machines, and the first appearance of his successor Commander-in-Chief Golden Mask. This is a theatrical version of episode 54 of the Himitsu Sentai Gorenger television series.

A Masked Monster being chased for stealing a microfilm with EAGLE secrets hides on a houseboat to avoid Kaijo and Asuka's pursuit.