Weng Weng plays an agent, code-named “00” who works for the Manila branch of Interpol. The Chief sends him in pursuit of an arch villain, Mr X, whose white sock covered head is reminiscent of the Ku Klux Klan’s pointed hoods. When Mr X holds the Philippines for ransom two businessmen, Maolo and Simeon, pay his demands. Weng Weng suspects foul play and goes deep undercover to reveal the true identity of the mysterious Mr X.

Mr. Giant has kidnapped the brilliant Dr. Van Kohler and is planning to use the Doctor's invention, the N-bomb, to hold the world hostage. The only one who can foil Mr. Giant's evil scheme is Agent 00, a 3-foot-tall filipino martial arts master, expert marksman, top-class romancer and all-around superspy. Can Agent 00 rescue Dr. Kohler before it's too late?

The diminutive Agent 00, is the number 1 agent from the Secret Agency.