House takes a young patient’s parents to court in order to get his course of treatment enforced and Tritter offers Foreman a deal to come clean about House’s drug use.
Mike thinks Susan is having an affair with Carlos; Bree thinks she is secretly being investigated by her boyfriend; Lynette's sister, Lydia (Sarah Paulson), visits to share some news.
Jane and the CBI are called in when a retired star quarterback (guest star Craig Bierko) is presumed dead following a car explosion.
The NCIS murder case of a retired Navy Lieutenant Commander forces Ducky to reveal his participation in a secret society that solves cold cases.
Addison's brother, Archer, moves to L.A. and starts working at the practice; Naomi has a patient who wants to put her dead daughter's frozen embryo into herself but Naomi learns the deceased daughter hated her mother; Cooper pledges to help Violet through her pregnancy and moves in with her.