Bruce Katzman

The nurses' complaints about Mark Sloan's trysts result in a date-and-tell policy; Cristina is forced to face her feelings for Burke; Meredith and Derek admit a veteran into their clinical trial.

As Carlos continues serving his jail sentence, Gabrielle valiantly tries to free him. Meanwhile Mike and Susan face a crisis in their relationship, and Paul Young returns.

The team works to determine whether a serial killer is threatening Garcia's life.

As Hotch fights for his life after being stabbed, he has visions of his late wife and his nemesis; when a teen goes missing, suspicions arise about her estranged father.

An explosion at Dell's house sends Heather and Betsey to the hospital; a shocking family secret is revealed when Addison's mother visits.

When Peggy moves to Los Angeles to assist with an unusual homicide, she is reunited with familiar faces.