At the end of the Greater East Asia War, young Amada Koichi and his father were wrongfully accused as spy suspects and his father died in prison after being tortured. Ten years later, Amada seeks for revenge on the three men responsible for his father death.

Sashichi investigates the mysterious murders of four beauties, all of whom were stabbed in the chest.

The 4th Super Giant film, in which he continues his fight against the Kapia Aliens (Part 2 of 2)

The 2nd Super Giant film.
Super Giant continues his battle against the foreign terrorists. In return, they frame him for murder. (Part 2 of 2)

The 3rd Super Giant film, in which he saves Earth from the threat of the reptile-like Kapia Aliens.