Credit: Will Hart/NBC/NBCU

Us Rating: **1/2

Serial rapists and child traffickers are the usual suspects in the salacious crime drama's 12th round, which marks Christopher Meloni's final season. Fireworks really fly, though, when savvy detective Benson (Mariska Hargitay) meets her match in a maybe-murderous DA (the excellent Shohreh Aghdashloo). (Universal, $50)