Arthur Bishop (Jason Statham) earns his living as a 'mechanic', a euphemism for hitman that betrays the precision and emotional detachment with which he goes about his business.
And that even applies when he's contracted to kill his wheelchair-using mentor Harry McKenna (Donald Sutherland), though he does at least demand to know why he should send his friend to an early grave.
Things then get awkward for Bishop, when McKenna's son Steve (Ben Foster) asks if he'll tutor him. Their partnership develops in fits and starts (and several deaths), but Bishop's boss Dean Sanderson (Tony Goldwyn) makes it clear he's not happy with the nascent partnership's latest assassination.
So, with all the main players inherently suspicious trained killers, and various motives for murder in the air, it won't take much to spark bloodshed - and that catalyst comes with an unexpected sighting at an airport...
(2011) Cert: 15