A reprint of the legendary issue that introduced The Batman to the world.
It starts with Commissioner Gordon chatting with his friend, Bruce Wayne. A call comes to Gordon from the police department, a man has been murdered and fingerprints on the knife shows that it was the man's son. Gordon heads over there immediately, accompanied by Wayne. When they arrive, the man's son explains that when he came home he found his father stabbed to death. He picked up the knife which is why his fingerprints were on it. While still at the crime scene, Commissioner Gordon receives a call from Steve Crane, one of the victim's business partners who claims there has been an anonymous threat on his life.
No sooner has Crane gotten off the phone with police than an armed assailant shoots him and steals a paper from his home climbing out the window to the roof with the help of a partner. The "Bat-Man" knocks one unconscious and tosses the other off the roof, and retrieves and reads the document before jumping into a car and speeding off.
Meanwhile, Rogers, one of the two surviving business partners, pays a call on Stryker, the other living partner. He is admitted to the home by Jennings, Stryker's man servant, who then suddenly and unexpectedly attacks him.
Can Commissioner Gordon solve the case of the Chemical Syndicate? And who or what is this man they call The "Bat-Man"?