一个体育纪念品贩子运气差到谷底，他决定用这样的方式自我救赎：去找自己六年级时的队友、现在已经是NBA传奇球员的史蒂芬·库里。

Nick Newell, a one-armed MMA fighter gets a rare chance to fight for the lightweight championship. He strives to win for himself and all the other people in the world with physical challenges.