A group of teenagers named "Imperceptible avengers" fight on the side of red army during the civil war in Russia.
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 ...
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!