Determined to wrest control over the central plains of China away from the kingdom of Wei, Zhuge Liang set out from Shu-- present-day Sichuan province--on a military expedition to the north.
無奈魏軍都督司馬懿高掛「免戰」牌，意圖讓遠來的蜀軍日久糧盡，無功而返。