Former criminal investigator, Major Korenev, nicknamed Fox is released from prison. He has been detained there as a result of planted incriminating evidence of unlawful investigation techniques. Setting accounts with Shaman - a big criminal boss, who ordered the evidence planted and also with his former colleagues was not a part of Korenev's agenda. As he returns to Moscow he finds a new world ruled by underworld bosses, criminal clans fighting each other and utter chaos on the desperately keeping appearances streets of Russian capital. Facing death of his friends, Major Korenev decides to re-install law and order using some unorthodox methods that are only relevant in 21st century Russia.

Colonel Fox is in charge of a counter terrorism group that will now have the complicated mission to help the police to prevent a dangerous Chechen terrorist organization that wants to free its leader at any cost, even if it has to destroy the whole place.

Major Korenev (Fox) continue to fight criminals after terrorists gang liquidation.