The Enemy Within 1×13 Promo “Sierra Maestra” Series Finale

The Enemy Within 1×13 “Sierra Maestra” Season 1 Episode 13 Promo (Series Finale) – SERIES FINALE: Tal’s war on the CIA expands to two fronts. Keaton and the Cointel team must locate the domestic target before Chigorin launches an all-out assault on the unsuspecting innocents. Shepherd convinces Keaton to let her go to Cuba to thwart Tal’s attack on Sierra Maestra, the CIA’s secret detention center imprisoning his operatives. Shepherd’s ever-shifting allegiance raises the question if she is there to stop Tal or join him?