Grace ponders going undercover; Elliot scolds Leni about her contact in the Pentagon; Billy has a brawl; Spud and Ray find an unlikely ally; Ethan's contact inquires about "Nina".

A panicked Spud seeks help from Ethan and Ray, and hatches a plan for skipping town; Grace shares her findings about Ethan with Leni and Elliot; Alec attempts to alter his deal with Campbell; Elliot makes an arrest that poses big problems.