In the playgrounds of New York City, Mr. J is disenchanted with the unsportsmanlike conduct he sees all around him. With the help of his assistant Fumie, Mr. J builds a team of unique kids from different backgrounds. The "United Sports Kids" are not just talented but they also value teamwork, perseverance, and strong friendships. When the United Sports Kids cross paths with Coach Cosmos and his team "Elite Players" who believe in nothing else but winning at all costs, the United Sports Kids show the importance of great sportsmanship and how it brings unity to the community. The formation of the United Sports Kids (USK) is just beginning but for Mr. J and the team, there are a multitude of challenges and adventures to come.