Emotions run high for the team as one agent is held in an unknown location and tortured by the mole, while another discovers he was betrayed by someone he least expected.
Hetty goes rogue, leaving the NCIS team completely in the dark, and the mole kidnaps one of the agents
Planted evidence by the mole results in the arrests of Callen, Sam, Granger and Deeks, on the same day Under Secretary Duggan returns for Hetty’s resignation.
A Navy reservist is killed while protecting a city councilman. Sam goes undercover at a private security firm with links to several criminal organizations to investigate. Meanwhile, Callen and Anna discuss the next steps in their relationship.