The playground trembles with fear. Billy Steiner rules his elementary school, and a long string of victims is testament to his ruthless power. Clinton Clark has seen the worst of it. His arm broken by Billy, Clinton is embarrassed and disgraced in front of his schoolyard crush, Molly Walker. The cast on his arm is a constant reminder of the entire playground’s subservience to the dominion of Billy. When all hope is nearly lost, the mysterious transfer student Quinn inspires the weak and timid to team up and challenge Billy’s reign. When Clinton sees Billy harassing Molly, he intervenes and war is declared. To the shock of Billy and the entire schoolyard, Clinton challenges Billy to a battle he’s almost certain to win: marbles. As a seasoned marbles player, Billy gladly accepts the challenge. Now Clinton has two days to figure out how to play marbles. With Quinn as his coach and the support of a terrorized schoolyard, Clinton puts his knuckles to the ground to prepare for the biggest fight of his young, meek life. But as he steps into the arena for this final battle, there’s more on the line for Clinton Clark than a handful of marbles.