In every war there are always a few good men and women chosen to go behind enemy lines. They are called to disrupt enemy activities and set captives free. In God's army, these elite soldiers are the faithful servants who risk everything, survive on little, and go wherever the Commander leads them. Their mission is to take the gospel of Christ to the lost and dying, and to rescue prisoners of war from the dark confines of POW camps. Some are called missionaries, others are simply known as "workers," but they all have a common enemy-Satan! Knowing who the enemy is and how to fight the battle is vital to every successful mission.