A swan egg shell was broken among a flock of ducks, but because this little swan was ugly, all the chickens and ducks laughed at him and excluded him. Even his own brothers and sisters bullied him and looked down on him. Everyone avoided him. In desperation, the ugly duckling was forced to leave home and wander around with risks. The ugly duckling came to a hut in a farm. He endures and lived for a while, while continued to suffer from being excluded by the chickens and cats. In the end, he alone came to the nature where he was striving. When autumn arrived, the ugly duckling saw a group of south-flying swans. They were so elegant and dancing beautifully. From then on, he can no longer forget these beautiful birds.

Winter is here, and the day is so cold. The ugly duckling is almost frozen to death in the cold lakeside. When he opened his eyes again, he saw the beautiful birds again. However, the ugly grey duck is no longer reflected in the water but a beautiful white swan.