Set in the creature state of Manchukuo in the 1930s, the film follows 4 Communist party unique agents that return to China after obtaining training in the Soviet Union. Together, they start a secret goal code-named "Utrennya". After being sold out by a traitor, the team find themselves bordered by risks on all sides from the minute they parachute into the mission. Will the agents damage the deadlock as well as complete their mission? On the snowy premises of Manchukuo, the group will be examined to their restriction.