It all begins in 1980s Britain, when young Will Proudfoot, raised in isolation among The Brethren, a puritanical religious sect in which music and TV are strictly forbidden, encounters something beyond his wildest fantasies: a pirated copy of RAMBO: FIRST BLOOD. His virgin viewing of the iconic thriller blows his mind -- and rapidly expanding imagination -- 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. But 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 ...