Yuriy Zimin

A machinist on a Navy ship has two sons, both bolcheviks. When the revolution comes the Tsarist police captures the machinist to put pressure on his sons.

Little dog Kashtanka is stolen, sold, tossed out into the street and saved by a clown. Young Fedyushka gets lost looking for the dog and ends up a prisoner of the sinister Mazamet who compels him to rove from house to house to make money, while Fedyushka’s father wanders through the streets in search of his lost child.