The BAU team investigate a series of seemingly random fatal explosions throughout Kentucky and Tennessee.
When successful businessmen in Detroit are targeted by an anger-driven, power-assertive Unsub, the BAU is called in to investigate.
Packages with disturbing contents are sent to six people across Washington DC. Simmons and Kristy struggle to connect with David.
The team travel to Russia to rescue a kidnapped American ballerina. Meanwhile, Jack deals with an ex-KGB agent who escaped from jail.
Twenty-three members of an American church group disappear in Tanzania, and the International Response Team are sent to investigate alongside the local authorities.