After the seemingly indiscriminate slaughter of the folks at a diner, it's the ambitious "Exley" (Guy Pearce) who suggests to his bosses that it's time for the LAPD to get it's act together and root out the corruption endemic within the force. To that end, he is promoted by "Capt. Smith" (James Cornwall) and sets about trying to assert a bit more of the rule of law rather than the rule of vengeance - that'd be the "White" (Russell Crowe) method, or the more venal and sleazy fashion of "Vincennes" (Kevin Spacey). Needless to say, nobody takes kindly to this new pure as the driven snow approach,...