Dondog, a young man who grew up on a horse mane, becomes a cowherd after being reprimanded by the management for killing his horse in a race with a car. On this occasion, the relationship between Yanjmaa, a driver who came to the collective, Gonchig, who comes to trade for personal gain, and Dondog, a horseman, was shown in light comedy.

A biographical film about Mongolian revolutionary Ard Ayush, who fought against Qing oppression and eventually takes part in the rise of an independent nation.

He made many merits, such as saving a wounded soldier from the pursuit of the enemy, seizing the white man's weapon on the way, and riding with a red flag to deliver a letter after his brother was killed by the enemy. Bat boy and his friends, who could hardly hold back the anger of the enemy and cried, won the revolution in Mongolia. showed how young people participated and helped in the rise.