Two friends, Mikhail Volkov and Viktor Kamintsev together served in Chechnya, and then their lives are scattered in different departments. One became an investigator of criminal police, another headed the Special Forces sniper group "Alpha". While investigating the killing of prominent businessman Volkov understands that it is necessary to look for a sniper. So he goes to an old friend, not knowing that he was introduced to the criminal environment and worked undercover.