Kagaku Ninja-tai Gatchaman II

Two years after Galactor's defeat and Joe the Condor's apparent death, Leader X returns. An attack on a cruise ship leaves a young survivor in his hands, and he forcibly transforms her into the adult-looking Gel Sadra, the unstable new figurehead of the revived Galactor.

The Science Ninja Team is called back into action, but replacing Joe proves more complicated than expected. A supposed new member, Hawk Getz, hides a deadly secret, and a mysterious feather weapon begins appearing around the team. When Joe himself finally returns with cybernetic changes that explain his survival, the reunited heroes face an enemy whose new leader is unknowingly tied to one of the tragedy's surviving families.