Adrenaline-surging action and gravity-defying stunts are the raison d’etre of writer Luc Besson’s and director Patrick Alessandrin’s exhilarating thriller — a sequel to the acclaimed French actioner Banlieue 13. David Belle and top cop Cyril Raffaelli are unleased against corrupt characters hoping to raze the eponymous racially mixed ghetto to the ground.