Lin Yun wants to be a top adventurer, but he often gets into trouble for being too optimistic. During a "spontaneous" outing, he met Ellie, Fat Tiger, Vivian and Harle. Five people accidentally broke into a mysterious world and were forced to team up to embark on a series of wilderness adventures. From Antarctic glaciers to lost ancient cities to super technological cities, they not only have to deal with harsh environments, but also have to battle wits and courage with weird institutions, and face the threat of being tracked by mysterious organizations. Along the way, humor and danger intersect, friendship is gained through laughter, and growth is witnessed in the face of crisis. In the end, everyone uncovered Vivian's secret and realized the true meaning of adventure: using courage and wisdom to explore the world and yourself.