"John Singleton directs Mark Wahlberg, Tyrese Gibson, Garrett Hedlund and André "3000" Benjamin as Bobby, Angel, Jack and Jeremiah Mercer, four tight-knit brothers who look nothing alike but who know the true meaning of family. Returning home for their adoptive mother's funeral, the grieving siblings learn she may actually have been murdered. Resolving revenge, they band together to make sure the killer pays."