There's a lot of violence and not a lot of thought. Kinley returns to Afghanistan to rescue his battlefield compatriot to pay back the favor.
Kinley recovers and returns home, only to learn from afar that Ahmed is now being hunted by Taliban soldiers. When Kinley is injured, Ahmed drags him over a mountain to safety. During a raid gone awry, Kinley and Ahmed find themselves the only survivors left, trekking deep into Taliban territory.
'The Covenant' is about how Kinley was assigned a battle-capable interpreter named Ahmed (Dar Salim) to help him and his platoon locate Taliban bomb-making facilities.