On the day of his daughter’s(Joey Hope Singer) birthday, William “D-Fens” Foster (Michael Douglas) is trying to get home of his estranged ex-wife Beth (Barbara Hershey) to see her daughter (Joey Hope Singer) . He has a breakdown and leaves his car in a traffic jam in Los Angeles and decides to walk. Then he goes to a convenience store and tries to get some changes for a phone call but the Korean owner named Mister Lee (Michael Paul Chan) does not change his money. The unstable William breaks apart the shop with a baseball bat and goes to an isolated place to drink a coke. Two gangsters (Agustin Rodriguez & Eddie Frias) threaten him and he reacts by hitting them with the bat. William continues walking and stops at a phone booth. The gangsters hunt him down with their gang and shoot him but crash their car. William goes nuts and takes their gym bag with weapons proceeding in his journey of rage against injustice. Meanwhile Sergeant Martin Prendergast (Robert Duvall) that is working on his last day before retirement is following the wave of crimes and believes that the same man is responsible but the other detectives do not pay attention to him.