The second movie of Tôru Murakawa's "Game" trilogy. After making a sensational hit, a hitman has gone into hiding for five years. When he comes back he bumps into two women that he has spared five years ago. Two rival yakuza bosses hire Narumi to kill the other. Will Narumi's sense of chivalry entrap him again?

The Moon Mask Rider is a tokusatsu movie produced by Purumie International/Herald Enterprises and distributed by Nippon Herald Pictures, was released theatrically on March 14, 1981. Considered Japan's answer to the American box-office fiasco, The Legend of the Lone Ranger (released the same year), this updated version of the Moonlight Mask legend bombed at the Japanese box-office. Daisuke Kuwahara (who, like Klinton Spilsbury , disappeared from doing films) plays George Owara (Moon Mask Rider's new alter-ego), and the rest of the cast made up of veteran action starlets: Sue Shihomi, Daijiro Harada and Takayuki Godai.

Samon, who had left his position as a police constable, embarks on a journey. During his travel, he is attacked by a group of masked bandits and sufferes a deep wound on his way back to Edo at the request of Magistrate Toyama. Saved by Dr. Kazumichi, Samon is asked by Toyama to identify an informant among the members of the lightning gang, a group of cruel thieves wreaking havoc throughout Edo. Samon then becomes an assistant to the firefighter squad led by Naito Hayato-masamune. One night, while rushing to the oil merchant Tambaya, who is attacked by the robbers, Samon and his group discovered a trembling young girl Oso who is the only survivor of the massacre and has lost her voice due to terror.