Directed by the relatively unknown Mo Ali, here comes a violent, but earnest story, about a former ex-Yugoslavian soldier, Dimitrije (played brilliantly by the Danish actor Lars Mikkelsen in a rare starring-role), who has been hunting down the notorious gangster Lazarus (Darrell D'Silva), who committed heinous war-crimes against Dimitrije and his family back in 1995. The chase has led them to present-day London, where hoodlums and gangsters rummage through the streets, looking for victims. The police force is naturally full of dirty cops who spoil countless investigations, which leaves the fuzz pretty much useless, and the citizens of London helpless.
Dimitrije therefore takes it upon himself to clean up the city, and secretly lurks on the roof-tops with his sniper-rifle, taking out scumbags every once in a while, much to the dismay of Lazarus and his cronies. One of Lazarus' henchmen is the young Montana (McKell David), who falls out of grace, and is soon picked up by Dimitrije, who in turn trains him to be a lethal assassin, to help him get to Lazarus.
What at first glance seems like a routine revenge-story, quickly turns out to be more of a father-and-son tale, when Dimitrije and Montana gets a much closer relationship, as they're both seeking a surrogate family, as they're otherwise all alone in the world.
For fans of Nicolas Winding-Refn (and particularly his "Pusher"-trilogy), this will be a very pleasing experience, as it not only stars Mads Mikkelsen's brother, but also has an extended cameo for Zlatko Buric, who plays his usual shady gangster-type character. And it's violent of course.
Overall, it's a pretty cool master/apprentice revenge story, with lots of people getting shot or brutally beaten (sometimes to death) throughout the film, so it's definitely not for squeamish children or those faint of heart. But if you love a good actioner with likable leads and wicked baddies, then this is the film for you!