Sergei Li, a special agent of a top secret unit of the FSB, flies to the Far East to conduct an investigation. His task is simple: to identify and detain a foreign intelligence agent who arrived in the Russian Federation under the guise of a circus performer on tour. The trick and special danger of this operation lies in the fact that Lee arrives at the scene without any cover; every dog in the area knows: a special agent has arrived from the center. This is where it turns out that he will have to catch the elusive spy in a situation where a real hunt has begun for Sergei himself.