Return to Sender

When a British prison guard is found dead in a shipping container, the team works with Fornell to track down the two prisoners who used the container to escape, one of whom was a former MI6 spy put away by Tom Morrow. Meanwhile, McGee and Bishop try to figure out how Tony affords his lavish apartment. Gibbs and Fornell later arrive at Morrow's home and find Morrow dead in his study, Morrow having been shot in the head, ending the episode in a cliffhanger.