V. Solntsev

The Soviet embassy in England sends two couriers with diplomatic mail to Leningrad. The inspector of security police, White, and a group of policemen attack the Soviet diplomatic couriers at night. The documents get to an English trackman, who gives them to his son, a sailor in Portsmouth.

A Soviet film about construction workers.

Based on the work of the same name by the Russian writer G. Danilevsky.