On the outskirts of Beijing, a group of children in distress are practicing baseball under the leadership of a 70-year-old coach. The quiet is shattered by the arrival of a young boy named Mahu, who has become a thorn in the side of the players and the coach because of his naughty behavior and gangsterism. Due to demolition and other reasons, the baseball base is required to move out by a deadline, and in half a year, the team will represent the Asia-Pacific region to participate in the world-class Little League tournament held in the United States. Will the boys be able to unite and break through? What will happen to the base and the children in the future?