A vigilante killer is on the loose in Cleveland, JJ's secret finally catches up with her, and Rossi is on the search for his missing Marine sergeant.
The BAU team search for a killer who telephones the authorities before committing his crimes. As Rossi prepares for a visit with his daughter, he receives news concerning the death of an old friend.
The NCIS team take on a renowned hacker, who could hold the key to tracking down the most-wanted cyber-terrorist in the world.
An armed man takes Wade, Sebastian, and Danny hostage in the morgue during the autopsy of a petty officer.
The sleuths investigate the shooting of a community activist. One witness emerges to testify against a notorious gang member.