A group of teenagers named "Imperceptible avengers" fight on the side of red army during the civil war in Russia.
A brilliant continuation of the saga, now in the city. The target of young patriots is a map held in the safe locker in the headquarters of secret police!
Third film in the Neulovimye mstiteli (1967) trilogy. This time the action is set in 1923/24 and the heroes Danya, Yasha, Ksanya and Valeri have joined the Cheka and take an active part ...