In Columbia, JT is heading an undercover operation to nail the drug lord who attacked Angie. Now he has to finish a job they started together years ago.
Back in the Pentagon, Sam finds evidence on the CIA director and has him indicted.
Jim Tisnewski and Colonel McNulty lead the force as the Pentagon intelligence deals with conflicts at home as well as abroad.
As viewers witness the decisions and execution of these decisions, often crises that are life-and-passing situations, the staff works for the safety and security of mankind as well as each other.