There is a seven-year war, Russian soldiers are forced to fight for the interests of France and Austria against Prussia. The midshipmen continue to selflessly serve the Motherland. One is on an expedition, the other is at court, and the third is sent to Venice to hand over a jewelry box. In fact, there is a message in the box, on which the future fate of Europe and Russia depends!
A young girl decides to join a Hussar squadron and fight against Napoleon. Dressed as a man, she proves herself an excellent, even heroic soldier, but complications ensue when her real identity is revealed.