With his deadly stone-flinging skill, Zhang Qing keeps at bay a force from Liangshan Marsh under Lu Junyi that has come to seize the grain stock of Dongchang. Song Jiang, who has just overrun Dongping prefecture, comes to reinforce Lu with his force. Zhang Qing further injures some of Liangshan's best warriors with his stones as they take turn to fight him on horseback or on foot. Gong Wang and Ding Desun stay in the wings preparing to capture any one whom Zhang fells.