D4区是由美国军队运用、以测试其最新的武器并维护人民的区域。五角大楼确保这种超秘密地域受维护平民的存在。虽然采取了一切的预防措施，但还是发作了严重不测事情。美国ZF必需迅速举动，决议派遣一个救援雇佣军矫枉过正！由于时间紧迫，五角大楼前决议铲平D4区和该地域一切的人。 　　D4 follows a team of special ops mercenaries on a mission to rescue a kidnapped kid believed to be held in an abandoned government facility. Hired by the boy's mother, a wealthy doctor with high reaching influence, all seems to be an easy job. Bu...