Ludwig Manukian

The investigation of a series of bludgeonings in Philadelphia leads the team to the city's boxing scene; Hotch connects with a fellow runner while training for the triathlon.

As the storm rages, patients are brought to the hospital by the busload and resources dwindle; a doctor's life hangs in the balance.

While seeking out the Clairvoyant; the team boards a train that appears to be heading toward doom.

Naomi and Sam compete to run the practice; Addison treats an Afghan girl who wants to hide her past.

Rookie cop Ben Sherman wonders if he is cut out for the job; a girl is kidnapped.

When a gunnery sergeant moonlighting as a security guard at a decommissioned nuclear power plant suffers radiation poisoning, the team goes under cover to investigate.