Matt Buckner and the Green Street Elite roar and whoop in the packed stadium, cheering their beloved West Ham United football squad. The match is rough and rabid, but only the warmup for what comes next. When it does, don't run. Stand your ground. Fight. Just think of someone you hate.

Elijah Wood is Matt, a visiting American drawn into the violent, smash-mouth ways of London's toughest football "firm" of diehard fans...and discovering a side to himself he didn't know existed. Charlie Hunnam plays the hooligan leader who mentors Buckner in the firm's code of conflict. And Lexi Alexander directs with head-butting intensity, taking us inside a rarely seen world of honor among thugs. Boozing, brawling - what else is there to life? The hard lesson Matt learns is that there's so very, very much more.