After the death of his Russian mother, nine-year-old orphan Peter lives with Professor Hartmann and his daughter Helga, who cares for him like a mother. Peter is very musical. He especially loves the melancholy songs of the Don Cossack Choir, which remind him of his mother. Because the boy has suffered from a severe heart defect since birth, his doctor, Dr. Stark, has forbidden him any excitement,...

Ivan Mozzhukhin is a "...hot-headed Caucasian mountaineer leader whose irrational behavior comes to the attention of the Czar . Hoping to use Hajji Murad as a go-between in his plans to conquer the Caucasus mountaineers, the Russian ruler finds that the hero is not so easily manipulated. Rescuing the beautiful Saira from the Czar's clutches, Hajji Murad leads the mountain people's revolt against t...