On a peaceful day, Pleasant Goat and Boiling Goat were attacked by Big Big Wolf and the terrifying mechanical dragon while chasing a mysterious man. After that, they were rescued by five little guys from Dragon Park: Chameleon, Drilling Dragon, Menglonglong, Qiqiaolinglong and Honglonglong. From Xiaolong's mouth, we learned that Dragon Park was ruthlessly attacked by mechanical dragons, and the crisis in another country also indirectly affected the peaceful and peaceful Qingqing Prairie. At the same time, Pleasant Goat's parents also encountered an accident during the time travel. In order to restore Dragon Park and Qingqing Prairie to their original state, and to save Zhiyangyang and Liyangyang, the friends of the Goat Village went to Dragon Park fully armed to find the legendary dragon flute. Big Big Wolf, who originally planned to take refuge at his mother-in-law's house, was accidentally involved in this new adventure... This film is the fourth theatrical version of the cartoon "Pleasant Goat and Big Big Wolf".