Perceived by the society as a schemer and the pyramid godfather, but as a savior and generous benefactor by his followers, One Network's founder and chairman Jin (Byung-hun LEE) is a complex character who controls a massive amounts of funds by pulling the strings of some of the most powerful figures in Korean congress, media and court. Financial Crimes Unit's Capt. Kim Jae-myung (Dong-won GANG) has been investigating Jin's exploits with his team and is ready to move in on him. After discovering that Jin's scheme was devised and maintained by software genius Jang-gun (Woo-bin KIM), Capt. Kim takes him into custody and demands to cooperate in the investigation. Stuck between his loyalty to Jin and the threat of going to jail, Jang-gun is in a catch-22 situation. He soon realizes he could turn this predicament around for his benefit and take off with a large sum of money. But Jin is tipped off about a mole within his organization and searches desperately for the traitor.