The Tawara family, the last shinobi clan. It had abandoned its roots after an incident in the past, but now the family must take on the greatest crisis in Japanese history, one that threatens to shake the nation to its core.

Um monstro gigante e radioativo apareece na baía de Tóquio e provoca o caos na cidade. Enquanto a criatura evolui as autoridades debatem como enfrentá-lo.