Golgo 13 is hired out by a mobster to go to Massachusetts and assassinate an anti-crime analyst during the state's presidential elections. When Golgo 13 is arrested by FBI agents for assaulting an agent, he is grilled regarding the murder and the PPS-made revolver that he used until a lawyer named Mr. Barton begins to question the loopholes in the FBI's accusations against Duke.
大統領指名大会を控えた市に、プラスチックの拳銃を所持したゴルゴ13が現れた。警察は彼の銃を一旦は没収するが、オモチャと判断し返却する。だが、その場にいたFBIのダッチェスは、彼をゴルゴ13と認識しマークするのだった。
