Tyler Poelle

The team are called to shut down a campus in order to create a profile for a killer, but they have doubts about the main suspect after taking them into custody.

After a series of suspicious murders occur, Prentiss suspects her old Interpol nemesis, making her fear for the safety of her BAU team as he closes in on her.

The staff of Sacred Heart receive a lesson in being environmentally conscious from the janitor. Meanwhile, JD's brother makes an appearance to share a hard truth.

JD and Turk grasp an opportunity to one-up Dr Cox after he fails to diagnose one of his patient. Meanwhile, Elliott and Carla tries to prevent Dr Kelso from retirement.

JD and Kim worry about their future as a couple when she goes into labour. The staff at Sacred Heart prove that parenting is all about sacrifice. Dr Cox searches for someone he trusts enough to give his daughter an injection.

The team joins forces with the FBI when a Marine is murdered by nerve gas, and Deeks shares his dream of quitting law enforcement to open a bar.