NIS ace agent Kwon Taekjoo is dispatched to Moscow to uncover the identity of ‘Anastasia’, a deadly weapon created under the secret collaboration of Russia and North Korea. However, his mission goes south the moment he sets foot into Russia, and Zhenya, a local partner assigned to him by the NIS, only serves to confuse him even more.

Zhenya, who has connections to Russian political and business figures as well as the underworld mafia, seems to always be easygoing and cheerful, but at the same time, his sudden bursts of brutal violence put Kwon Taekjoo on edge. Meanwhile, Zhenya begins to take a newfound interest in Kwon Taekjoo, who refuses to be broken by any hardship…