 Izzy competes in an exhibition match against Rodney (Patrick Johnson, Jr.), his classmate and the neighborhood bully, and wins using strategy and focus, giving him a chance to go to the Golden Gloves.Izzy's neighbor, Mary Thomas (Keke Palmer), is a competitive Double Dutch player on a team called the Joy Jumpers; though the two are always arguing around each other, their friends know that they have crushes on each other.Izzy brings his younger sister, Karin (Kylee Russell), and her friends to the Double Dutch regional competition, to watch Mary and her teammates, Shauna (Shanica Knowles), Keisha (Laivan Greene), and Yolanda (Jajube Mandiela).