Forest is the largest ecosystem on land. China has a rich types of forests, where various rare species thrive in dramatic struggles for existence. In this episode, we can see the Papilio Helenus, forktailed sunbird and wasp fighting in the world’s largest virgin karst forest; the striking contrast between the beautiful appearance and the brutal killings of the Redstarts; the replacement of the monarchical power within the Francois’ langurs, the emergence of new life, the development of humanmonkey relationships, and the Silver pheasants living in thickets. We will also come to the middle of China, where we record the world's most rare birds –Crested ibis’s stories about how they teaching and inspiring their children to fly. Finally, we will come to the northeast of China. Here we have the temperate coniferous and broadleaved mixed forest with the best natural condition and abundant biodiversity in the Northern Hemisphere. We will show the story of people collecting pinecones in the autumn and how the Manchurian tigers and ungulates living in winter. The people here are also learning share the nature’s gifts with others, making this forest become the home of all the residents.