Once upon a time in the distant Middle Ages, the king of Norway decided to give the king of England a polar bear. She had to go on a long journey across the sea, but, locked in a cage, she did not allow any of the sailors to approach her, did not want to eat or drink, growled and grinned as soon as anyone approached. And only the boy Arthur managed to calm her down with his songs. Together with the bear, he went to London and over time realized how sad she was, born to swim in stormy waters, in a cramped cage on a boat. The desire to be free is so familiar to him...Will they ever be able to become free again?