Sacha, a young girl from the Russian aristocracy, dreams of the Great North and anguishes over the fate of her grandfather, Oloukine, a renowned scientist and Arctic explorer who has yet to return from his latest expedition to conquer the North Pole. Sacha has always been fascinated by the adventurous life of her grandfather and has the same calling to be an explorer. Sacha flees her home and launches an adventure-filled quest toward the Great North in search of Oloukine and his ship.