Radio engineer Bruce King stumbled across a strange phenomenon while working with ultra short radio waves. First, he came across the neutralization of heat waves, with intense cold resulting. Then, on a shorter wave, there was complete, impenetrable darkness, totally neutralizing light. Wearing his insulated suit and special night vision goggles, Bruce uses a Black-Zero Transmitter device which can project a beam of absolute darkness or freezing cold. He also invents an anti-gravity wave so that he can fly. He uses these devices to capture criminals and to become the adventurer King of Darkness.