The film plays one of a little-known pages of the biography of Arkady Gaidar, the young man when he was appointed commander of the detachment CHON (special-purpose parts)...

An officer accidentally leaks information about the first test of a new aircraft model. When spies get hold of this classified information, the development of the new airplane is under threat.

Soldier Armenak is given an extraordinary task: to transport an elephant from Germany to the Yerevan Zoo.