CBS

Season 4: Episode 24 - Amplification

Amplification: When a new strain of weaponized anthrax is released into the public, the team works with members of the Centers for Disease Control and Department of Homeland Security to catch the Unsub. When we get to the Unsub's lab, Reid inadvertently enters a spore-filled room, placing him under immediate quarantine. As Reid gets treated for exposure, he is able to profile the Unsub from personal details in the lab and help direct the team to the Unsub's next target.