The year is 1987, and the Cold War is still raging strong. Steve Darwood is a US Army counterintelligence agent in South Korea, working in Tongduchon, a small city close to the North Korean border and the demilitarized zone, when he stumbles upon a black marketing operation that is blackmailing soldiers for various types of information. Investigating further, he uncovers a network of criminals who appear to be linked to numerous military personnel. As Darwood continues to investigate, he begins to come against resistance from his own chain of command. Soon, Darwood finds himself alone, working against many of his own people, relying on his extensive network of sources, connections and allies. Slowly, he begins to realize that the network might go even higher, pushing him into a situation where he must challenge his own people, who hold the reins of his job, his lifelihood and even his life.