In order to get rid of the unchanging city life, Lin Zhengyi pulled together his friends Du Xiaoyang, photographer Ge Xinghai and professional guide Song Ke, and embarked on an adventure to search for the legendary "Qiyu Island". On the way, they were stranded on a mysterious island due to a shipwreck and met a local boy, Atu. The five people work together and embark on a vigorous adventure on an island full of traps and mysteries. Through fantastic journeys such as lost forests, underground ruins, and intelligent biota, they not only gain friendship and growth, but also gradually reveal the huge secret behind the island. The story progresses with endless jokes and witty dialogues, with constant fun in the tense moments, and finally ends with the protagonists working together to solve the island crisis and return safely.