Doyle’s past love comes to town, but her new fiancé has other plans for him. Doyle gets a vision of Buffy.

The CBI team investigates when the body of a female army medic who worked with soldiers with PTSD is found near a military base.

Chief O’Brien goes undercover to infiltrate an Orion crime ring.

Gideon, Reid and Prentiss travel to Guantanamo Bay to interrogate the leader of a terror sleeper cell being detained there after a chemical weapons dispersal device is discovered during a…