The heroes have struck down Damien Gray, Z's most trusted lieutenant - but the war is far from over. Before Emi stands Z's final enforcer: the mysterious Raja Khan. Determined to uncover the truth of her own identity, Emi embarks on a new journey alongside Raja and Casshan. But every step brings her closer to the ultimate confrontation - where Gatchaman, Polymar, Casshan, and Tekkaman must unite for one last, decisive battle against Z!