Adventures of Mowgli is an animated feature-length story originally released as five animated shorts of about 20 minutes each between 1967 and 1971 in the Soviet Union.

When Assol was a little girl, she met a wizard who foretold that it will be a fine sunny day when a beautiful ship under scarlet sail would arrive and the noble prince would take her away to the world of her dreams where she will be loved and happy. The neighbours joked about her, children teased her, but Assol chose to believe in miracles and wait for her prince.

Driven from the court by her sisters' scheming, the young Tsarina is thrown into the sea in a cask with her infant son. Surviving the storm-tossed voyage, the mother and her now magically-adult son land on a remote island where he falls in love with a Swan Princess in human form, and longs for reunion with his estranged father, Tsar Saltan. Merchants come to the island with news of the tsar, and the prince sends word back to him, but the sisters continue their campaign of lies and trickery to keep them apart.