Doubt and conflict ignite as Polymar and Gatchaman face off—pushing the Tatsunoko legends toward their ultimate destiny. Polymar has lost faith in his own path—and the weight of doubt drives him into a direct clash with Gatchaman! When fists and convictions collide, the truth behind their bond is finally revealed. Meanwhile, Casshan and Tekkaman stand ready as the four great Tatsunoko heroes step forward to forge a new legend in the battle against “Z”!