Master of Tae Kwon Do — Richard Brightfield

The CIA asks the reader to undertake a perilous mission to Korea, posing as a student of tae kwon do to find an old friend and former kung fu instructor, Ling, a girl who has been brainwashed by enemy agents.

You and your friend Billy are martial arts experts. The U.S. government has sent you to Korea as undercover agents to track down your former instructor, who has been brainwashed into using her abilities to set up a strong underground gang. Original.