NEW ADVENTURES OF THE ELUSIVES, war movie by Edmond Keosayan, 1968, English subtitles

The action takes place in 1920 during the Civil War. Crimea on the eve of complete liberation from the Whites. The "elusive avengers", returning from the next mission, managed to knock out the white army's airplane and capture the pilot. Documents were found in the pilot's tablet, indicating that the White Guards had built secret defensive fortifications around the city, which was to be taken by the Red Army. Young heroes are given the task to get a map of fortifications and go to the city...