It's SO BAD, it's GOOD!
The Dark Empire is determined to conquer the Universe and get rid of anyone who acts against it. The Space Thunder Kids, made up of three valiant youths, are responsible for patrolling space and obstructing the invasion of the Dark Army.
Doctor Sparta, a scientist, is pursued by the Dark Army after the devastation of his planet. He flees to the Earth and meets Doctor Rhodes, who develops advanced weapons for the Guardian Army.
The Dark Army bombards the Earth aggressively and kidnaps Dr. Sparta and Rhodes. The Space Thunder Kids come to the rescue with the fighter robots, and together with the aid of the Guardian Army, the Successfully save the two scientists and shatter the Dark Empire.