“Kwon Taekjoo, go to Russia and find ‘Anastasia’.” Following this urgent command, the National Intelligence Service’s top ace is dispatched to Moscow on a high-stakes mission to uncover a lethal secret weapon developed by Russia and North Korea. However, Taekjoo’s first assignment in Russia quickly spirals into chaos, made even more complicated by his new local partner, Zhenia. Although Zhenia is a powerful figure with deep ties to both the Russian elite and the criminal underworld, his persona shifts unpredictably between cheerful charm and violent, erratic outbursts. As the mission intensifies, Taekjoo’s calm resilience in the face of danger sparks a peculiar interest in Zhenia, creating a tense dynamic where the mission’s success is as uncertain as his partner’s temperament.