An elite squad of six soldiers, led by ex-slave Barabbas, is sent on a suicide mission to infiltrate a heavily guarded Confederate fort hidden deep in the Arkansas wilderness. Their objective: Destroy the fort's long-range guns and shift the tide of the war. But as they venture further into enemy territory, the mission takes a chilling turn. The soldiers uncover a dark and sinister secret buried within the heart of the forest -- one that will test their courage, loyalty, and will to survive like never before.