[WATCH] 'NCIS: Los Angeles' Sneak Peek: What Has FBI Agent Zoe Morris Gotten the Team Into?

Erin Way, first seen in last season's "Battle Scars," returns as FBI Agent Zoe Morris in NCIS: Los Angeles season 9 episode 21. The team partners with the FBI after a Marine is murdered by a rare nerve gas.

Remember when Deeks mentioned wanting to buy an abandoned bar? Well, in "Where Everybody Knows Your Name," he shares that dream, which includes quitting law enforcement.