In the film "Code Puzzle", a criminal gang led by terrorist Zafad secretly placed four remote-controlled nuclear bombs in four international metropolises around the world. The Russian National Security Agency dispatched female agent Dasha as Mary, who was ordered to go undercover in Zafad's armed base and gradually gained his trust. However, Zafad was killed by his partner Bat, and the survivor Dasha was ordered to find a Parisian banker named Louis to stop the whole conspiracy. Bat quickly obtained most of the codes to detonate the four nuclear bombs, and the situation was extremely urgent.