Mike begins to think that Susan is having an affair with Carlos, and Bree suspects that her detective boyfriend Chuck may secretly be investigating her.
As the team try to discover what's causing an apparent allergic reaction in a young gallstone patient, House finds it difficult to concentrate without his pills. Meanwhile, Tritter continues to work on the rest of the team in an attempt to get them to talk about House.
An ex-American football star is given another shot at life after a case of mistaken identity sees his assistant murdered. Was he the actual target?
Addison's brother, Archer, moves to Los Angeles to work at Pacific Wellcare; Cooper encourages Violet to discuss her pregnancy with Pete and Sheldon.
The NCIS murder case of a retired navy lieutenant commander forces Ducky to reveal his participation in a secret society that solves cold cases.