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.

The struggle of the Komsomol members against private speculators for the surrender of fish to the state.

In the short-lived Commune of Paris, a conscripted soldier falls in love with a Communard saleswoman. As the army cracks down on the revolutionaries, the soldier is forced to fight against the Commune, and the pair's love is put to the test.