Scott Victor Nelson

In order to find the killer of an undercover narcotics cop, Jane and the CBI team retrace her investigation. Samaire Armstrong (Dirty Sexy Money) guest stars as Summer Edgecombe, a prostitute who helps agent Cho with the investigation. Dean Norris (Breaking Bad) guest stars as Sergeant Don Henderson.

When Archer has a severe seizure, Addison and Naomi use every resource possible to determine the cause and a cure; Violet tells Pete and Sheldon that she is pregnant; Cooper cares for an abandoned patient.