Captain America comes to the rescue of a man being assaulted by a couple of thugs on a bright Brooklyn morning. Cap turns the defeated punks over to the police who recognize them as a pair of mobsters in town for a secret meeting. After everyone leaves, the victim comes out of hiding and takes a room at a nearby boarding house….
Steve Rogers stops by the offices of Non-Parallel Publications and receives an art assignment from the eccentric editor Cynthia Maxwell Kramer. Later, as Steve is at home with Josh and Mike, he hears Mrs. Kapplebaum scream. When Steve arrives, the aged Holocaust survivor claims she saw a Nazi across the street. That night Steve hears a rifle shot and as Captain America he goes to investigate. On a rooftop across the way, Cap finds the Punisher (mistaken for a Nazi by Mrs. Kapplebaum because of his black outfit) threatening the man rescued by Cap earlier that day. Punisher wants to kill the victim, a mob courier, but Cap won’t let him. The two crimefighters face off but the victim panics and runs and the vigilante guns him down. Punisher heads off to a meeting of high-level gangsters and the dying courier gives Cap the location, too. Cap arrives at the meeting place in a disguised water tower to find that the Punisher has already wired the structure with explosives. Cap engages the mad vigilante in battle and the noise attracts the gangsters’ attention so that the two find themselves under fire. They fight back in their separate ways and defeat the enemy. Then the head crook’s beautiful lady bodyguard reveals herself to be an undercover FBI agent. Punisher detonates the bombs and escapes in the confusion. Cap determines that the Punisher must be stopped….