Four Brothers (2006)

The seemingly-random murder of their adoptive mother in a convenience store sends four brothers from Detroit on the path of vengeance when they uncover a tangled criminal web involving a local kingpin. After returning to Detroit for their mother's funeral, four adopted brothers set about avenging their mother's death, though warned not to by childhood friend and investigating officer Lt. Green (Terrence Howard) who admonishes that the police must be allowed to do their job, at the great derision of Bobby Mercer. Originally under the impression the crime was a simple "robbery-gone-wrong", the brothers soon discover that the robbery was merely a cover for what was, in fact, a "hit" put out on their beloved mother. After this revelation, Bobby (Mark Wahlberg), Angel (Tyrese Gibson), Jeremiah (Andre Benjamin) and Jack Mercer (Garrett Hedlund) track down the hired guns via the alleged "witness", named Damian (Lyriq Bent) who was paid by the hitmen. Damian gave up the location of the hitmen after falling and badly injuring his leg. The brothers then approach the contract killers at a bar, which leads to an intense car chase. The assassins are eventually cornered and, refusing to say anything, are unceremoniously executed by Bobby and Angel...