About the series
Oleg Rubtsov can never stay in one place for long and is forced to constantly move. It all comes down to his past — he's an operative of secret unit 0-18, callsign Pilgrim. The unit took on complex and sensitive cases where ordinary law enforcement proved powerless: eliminating organized crime groups, armed gangs, and terrorists. Suddenly, every member of the secret unit is exposed — a mole has leaked the personnel files of all its operatives. Most of Rubtsov's colleagues are killed. Pilgrim manages to save himself and hide his wife. Now he must figure out who the traitor is and how to go on living.