The kind old lady Evelyn was killed in a supermarket robbery. Her four adopted sons: Bobby (Mark Wahlberg), Anger (Tyrese Gibson), Jack (Garrett Hedlund) and Jeremiah (André Benjamin) all returned to the town to take care of their mother's funeral. It turned out that Evelyn was keen on charity when she was young. She kept the four orphans with bad personalities in her home and raised them with careful love and teaching. The four brothers of different skin colors decided to avoid the police and catch the robbers themselves to avenge their mother. However, although they shot the killer who committed the crime that day, they found that there was another secret behind their mother's murder. Jeremiah seemed to be involved in a dispute with the local underworld because of financial problems... Who killed their mother? The four brothers have to piece together the truth...