Senior chief petty officer Jason Hayes deals with the recent loss of a team member as he leads an elite Navy SEAL team. They receive a mission to apprehend a high profile ISIS leader.
Elizabeth makes a secret trip to Iran in hope of preventing a coup that could impact President Dalton's administration; Elizabeth's staff are brought up to speed on the investigation into Marsh's death.
A retired SEAL, who tracked people impersonating military personnel, is murdered; Brody finds that LaSalle is uncharacteristically unenthusiastic about Christmas.
Mac, Desi, and Russ go undercover during a royal Indian wedding to protect a princess whose policies could put her life in danger; Bozer suspects Riley is up to her old hacking ways.