The film recounts the key milestones in the career of Pyotr Kozmich Frolov – a mining engineer, innovator and director of the Kolyvan-Voskresensk Works. Produced as part of the celebrations marking the 250th anniversary of his birth, the film offers an artistic interpretation of the events in P.K. Frolov’s life that shaped his character and his achievements in the development of the Altai region.