A fight broke out at a youth party, as a result of which the son of a prominent businessman was seriously injured. Major Volkov learns that the young man Anton who shot the guy is hiding on a small island in the Baltic Sea, and decides to detain the criminal on his own. The case seems simple until the island is cut off from the mainland by a storm and a thunderstorm, and instead of detaining an unarmed guy, Volkov has to protect the village and the local police station from a group of armed bandits.