D4區(qū)是由美國軍隊(duì)使用、以測試其最新的武器并保護(hù)人民的區(qū)域。五角大樓確保這種超秘密地區(qū)受保護(hù)平民的存在。盡管采取了所有的預(yù)防措施，但還是發(fā)生了嚴(yán)重意外事件。美國ZF必須迅速行動，決定派遣一個(gè)救援雇傭軍矯枉過正！由于時(shí)間緊迫，五角大樓前決定鏟平D4區(qū)和該地區(qū)所有的人。 　　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...