Frank Martin, played by newcomer Ed Skrein, a former special-ops mercenary, is now living a less perilous life- or so he thinks- as an independent agent contracted to transport classified packages for questionable people. When Frank's father (Ray Stevenson), pays him a visit in the south of France, their father-son bonding weekend soon takes a turn for the worst when Frank is engaged by the cunning femme-fatale, Anna (Loan Chabonal), and her three seductive sidekicks on a mission to orchestrate the bank heist of the century.
In a dystopian Detroit, abandoned homes from better times house the city‟s most dangerous criminals. These are the grim, apocalyptic housing projects known as Brick Mansions. Unable to control the rampant crime, the authorities have walled Brick Mansions in, supposedly to protect the rest of the city from its lawless, violent, degenerate inhabitants. In Brick Mansions, only the strong survive. In this dog-eat-dog society, the ruthless, urbane, and deadly drug kingpin Tremaine, played by RZA, is at the top of the foodchain.