Matthew Grant Godbey

Following a series of fatal shootings, the BAU team travels to Illinois to investigate what appears to be a copycat serial killer.

The mole has once again compromised the NCIS team as planted evidence results in the arrests of Callen, Sam, Granger and Deeks, on the day Under Secretary Duggan returns for Hetty's resignation.

A maintenance worker with a dark history puts a local teenager in danger; Sam has to choose which of his colleagues he'll take to the football game.

An attack on a graduate student working on a new electromagnetic weapon for the Navy is linked to international warfare; Kensi struggles with physical therapy for her spinal injury.