Based on a real story in Inner Mongolia, the film praises two teenage sisters, Long Mei and Yu Rong, who risked their lives to protect a flock of the Commune's sheep during a blizzard.

Lyrics:
Oh no, the sheep are running astray.
(singing) To protect the sheep, we fear neither the cold nor the blizzard. Ah, the beacon of revolution is shining in the hearts of the little sisters. To protect the property of the collective, we fear neither frost-bite nor hunger. Ah, Communist thoughts are beaming over the little heroes.