A young boy, whose father, Blue Thunder, was murdered by the villainous "Black Mantis." After Black Mantis kills his father and steals the family fighting style, Blue Thunder's son takes on the name "Thunder Prince" and vows revenge.
A bunch of kids and their pet dog accidentally discover the lair of villain Black Star, who is kidnapping the world's top scientists to develop a secret weapon. Will Golden Bat, the superhero the kids idolize, be able to rescue them?
