Shrek lives in an ordinary world - he is an ugly monster with a green body, a weird temper, and a lazy life. Some uninvited guests came to his house one day. They told Shrek that they came from a kingdom ruled by a cruel king and were now homeless. Moreover, the cruel king also plundered a beautiful princess and planned to take her as his wife. Although Shrek is ugly, he is kind-hearted. Under the coercion of the lord, he had no choice but to rescue the princess and wanted to see her beauty. On the way, he met a talkative mule. The mule knew about Shrek's deeds and decided to serve him loyally. There is a fire-breathing dragon waiting to fight with them on the road ahead. Can they overcome the difficulties and perform a perfect fairy tale of a hero saving a beauty?