[3] Justin Power (Hunter), an agent for Espionage, Inc., returns from a mission in which he used a time-travel belt to steal secret plans.

A sister agency has discovered Dragon plans to destroy Los Angeles if United States forces are not withdrawn from Southeast Asia.

Aware that Dragon has a primitive hydrogen bomb, but no way to deliver it, Espionage, Inc plans to interrogate a captured agent, Chang (Gerald Jann).

A man in a cowboy suit shoots Chang with a dart gun concealed in a camera, while Sato and the female agent watch helplessly.

At headquarters, the Professor (Jon Lormer), and his assistant, Miss Sweet (Deanna Lund), subject Chang to a truth machine that forces him to tell what he knows at the risk of brain damage.

The interrogation of Chang reveals that a hydrogen bomb is being delivered piece-by-piece and assembled in Los Angeles, to be exploded on Christmas Day, three months away.

Power meets his new partner, Ki Ti Tsu (Kitty) (France Nuyen), the agent who aided during the Hong Kong assassination attempt.

Kitty is suspicious because in China, an owl is symbolic of ill omen, and because she recognizes the hostess as an enemy agent.

Power receives a message from Cane and learns the Ming company—the maker of the owl bomb and a front for Dragon—has a warehouse in Long Beach, and is expecting a shipment from Hong Kong on the Osaka Maru in three weeks.

Kitty confronts Big Buddha, wanting revenge for his war crimes as executioner during the Nanking Massacre, including the death of her parents seven years earlier, but she is captured.

Power and Kitty return to the present to use their knowledge to stop Dragon again without time travel, and let Cane's people do all the work.