as the new generation of "Law & Order " series of works , play the story take place in sunny Los Angeles, California . The play is described in the U.S. west coast customs , political , crime and culture . The hero Rex, Winters, ( played by Skeet Ulrich, ) and the nickname TJ play Tomas Jarusalski (Corey Stoll ) segment of the best detectives of the Los Angeles Police Department , worked for the Bureau of the elite sector - robbery and murder . Reputation with Angel City , the City of Los Angeles , every day to hunt for heinous criminals and bring them to justice . Winters had participated in the Marine Corps , upright character, to mince words, but the character is quite stubborn . His view of the world is very simple. TJ's father , the famous film won an Oscar , TJ, from an early age to understand , in Hollywood, glossy appearance , behind a lot of dark, dirty things . The assistant prosecutor, Morales ( Alfred Molina, play ) is a realist , always talking to people , then barbed extremely sarcastic and feared . He believes that pure morality and justice exists only in theory - when you in the street and fight , morality and justice, to no avail . Although Morales knows how to find a balance between the public image and behind-the-scenes politics , but as long as the court , he will spare no effort to protect their own think justice .