The BAU travel to Philadelphia where the latest victim of the The Replicator has been found murdered.
A gunman hides in a body bag sent to Ducky, then takes the medical examiner, Gerald and Kate hostage. Gibbs must find a way to free them.
When a government employee is kidnapped in Afghanistan, Elizabeth takes advice from former Secretary of State Madeleine Albright, clashing with the president's recommendation.
Zach is pulled over by a police officer who insists on searching his car for drugs, and Alicia must go on the offensive when she steps in to defend her son in court.
The team travel to Afghanistan when they realise that Taliban insurgents may be responsible for Blye's disappearance.