The workers at the ironworks are working to fulfill a two-year plan. The spy group takes advantage of the bitterness of a disrespected innovator and tries to extract information from him about a new technology for pressing metal powder. However, their plans are thwarted by the vigilance and vigilance of the research staff from Department Z-8.

Cast:Josef Bek, Milica Kolofíková, Jiřina Petrovická, Karel Pavlík, Ladislav Boháč, Bohumil Machník,

Genre:Drama,

country:Czechoslovakia,

Production:Československý státní film,