Amelia Rose Blaire

Investigation into the suspected rape of a woman Benson helped earlier leads to a cybermogul; the team bids farewell to Sergeant Munch.

Hank and Nick are called to a high school to look into the gruesome death of a teacher. As the investigation continues all the evidence points to a troubled musical prodigy named Roddy. While Nick delves deeper into the mystery he recruits Monroe to try and speak with Roddy, to divert him off a path that would see him destroying his future for vengeance. Elsewhere Nick learns that his presence is affecting the creature world.

In order to find a group of jewel thieves, Lisbon must channel her inner Patrick, who is too sick to investigate.

Maggie is upset when Meredith evades her questions, while Dr Herman and Arizona finally begin to bond, and Richard feels manipulated.

The BAU track down a child abductor when an 18-year-old girl escapes after being held prisoner for 10 years.

Martin sets out to find Teller's secret workshop, and ends up helping another professor; Jake receives an unexpected visitor.