Three boys are helping Soviet Intelligence to catch German spies during WWII.
Mishka Alekseyev
Vaska Kozhukh
Styopka Panfilov
Ivan Vasilyevich, KGB major
Aleksey Burakov
Uncle Petya / German spy
Semyon, truck driver
Zhora "Brunette"
Shurka "Krendel"
Valeriy Kaplunov, rocketeer
Voronov, clock master
House superintendent
