Lin Chen and a group of urban youths shared apartments, struggled, fell in love, and grew up in a big city. They experienced workplace adventures, emotional farce, family turmoil, and friendship tests. From the initial confusion and ups and downs, they finally found their own exit together. The story is told in a fast-paced and humorous way about a group of young people crawling and rolling in the urban forest. They encounter setbacks one after another, but they are able to gain warmth, hope and a future in a hurry.