Xiao Bin, a 13-year-old immigrant son, is bullied by two hooligans. In order to avoid being bullied from the two hooligans, Xiao Bin attempts to join a teenager street gang. However, he finds that joining the gang is not as easy as he thought and faces many challenges in his life. He learns valuable lessons about friendship, loyalty, and responsibility while trying to make sense of the world around him. Despite facing numerous obstacles, Xiao Bin remains committed to his goals and strives to make positive changes in his life.