Chain of Command Series 1 4of8 The End of the Beginning

Chain of Command is an intimate portrait of the war against violent extremism, and the men and women devoting their lives to it. With unprecedented access to the U.S. Armed Forces, Chain of Command inhabits the rarely-glimpsed innermost sanctums of the Pentagon, the front lines of battlefields across the world, and even the cockpit of a fighter jet on a mission.

Part 4: The End of the Beginning
While coalition forces in Iraq gain ground in Mosul, in Trinidad and Tobago, local Muslim leaders are the tip of the spear in the fight against ISIS.