1936-1937

Diana Palmer's ship is attacked before it reaches New York. The Phantom saves Diana. The Singh Brotherhood kidnaps Diana and takes her to their leader Kabai Singh at their base at the bottom of the sea. The Phantom manages to rescue Diana and escape but becomes severely injured. Diana is picked up by a British naval ship that destroys the base. The Phantom is captured as he tries to enter the Singh base alone. Kabai Singh's protegé, Sala, falls in love with the Phantom and rescues him. Sala reveals that she was a spy for a group called \"The Sky Band\". The Phantom decides to investigate.