In 1980's Britain, young Will Proudfoot is raised in isolation among The Brethren, a puritanical religious sect in which music and TV are strictly forbidden. When Will encounters his first movie, a pirated copy of "Rambo: First Blood," his imagination is blown wide open. Now, Will sets out to join forces with the seemingly diabolical school bully, Lee Carter, to make their own action epic, devising wildly creative, on-the-fly stunts, not to mention equally elaborate schemes for creating a movie of total commitment and non-stop thrills while hiding out from The Brethren. When school popularity finally descends on Will and Lee in the form of, oui, the super-cool French exchange student, Didier Revol, their remarkable new friendship and precious film are pushed, quite literally, to the breaking point.