Episode #23

Debut: FRIDAY, AUG. 23 (10:00-10:50 p.m.)

Other playdates: Aug. 23 (11:30 p.m.), 24 (9:00 p.m., 11:50 p.m.), 25 (noon), 26 (10:20 a.m., 11:45 p.m.), 27 (2:20 p.m., midnight), 28 (8:10 p.m.), 29 (9:00 p.m.), 30 (10:30 p.m.) and 31 (9:00 p.m.), and Sept. 2 (12:30 p.m., 11:30 p.m.), 3 (11:50 a.m., midnight), 4 (8:00 p.m.), 5 (9:00 p.m.), 11 (7:10 p.m.), 18 (6:20 p.m.) and 25 (5:35 p.m.)

Although they are uncertain of others' loyalties, the team must work with an asset in Beirut to get a lead on James Leatherby (Dougray Scott), a dangerous and unpredictable operative with ties to al-Zuhari.

Written by James Dormer; directed by Julian Holmes.