In the twelfth season of Dick Wolf’s iconic Law & Order series, crimes of passion come to the forefront as Elisabeth Röhm joins the cast as ADA Serena Southerlyn and Dianne Wiest ends her tenure as DA Nora Lewin.  Tensions are running high amongst New York’s finest investigative and legal professionals with cases ranging from dog maulings to revived cold cases that bring to light errors of the past.  But as the season builds to a frenzy, some of the team will find themselves under attack for taking justice to the extreme.  Guest stars Gary Busey (Lethal Weapon) and Joe Piscopo (Saturday Night Live) joins Jerry Orbach, Jesse L. Martin, S. Epatha Merkerson and Sam Waterston in 24 gut-wrenching episodes from the riveting season that was dedicated to the victims of 9/11, their families, and the brave firefighters and police officers that came to their aid.