In 2018, in a dystopian Detroit, abandoned brick mansions left from better times now house only the most dangerous criminals. Unable to control the crime, the police have constructed a colossal containment wall around this area to protect the rest of the city. For undercover cop Damien Collier (Paul Walker), every day is a battle against corruption. For ex-convict Lino (David Belle), every day is a fight to live an honest life. Their paths never should have crossed, but when drug kingpin Tremaine (RZA) kidnaps Lino’s girlfriend, Damien reluctantly accepts Lino’s help and together they struggle to stop a sinister plot that involves a stolen bomb set to destroy the entire city.Eventually, with the help of Lino and Tremaine, Damien realizes that his father was killed by his fellow officers and that the mayor was behind the plot. Damien, Lino and Tremaine confront the mayor and manage to prove his true intentions and have him removed from office. Brick Mansions is welcomed back into the city, with Damien and Lino continuing their friendship.