During the Xining period of the Northern Song Dynasty, Hua Nongying, the proprietress of "Wangyun Inn" in Qingfeng Town, Border Pass, was beautiful and intelligent, and she secretly collected border intelligence. Bandits are rampant in the town, plundering caravans. Qin Feng, the stationed captain, is ordered to suppress the bandits and often stays at Wangyun Inn. Once, a group of mysterious people checked into the inn and wanted to steal the border defense map. Hua Nongying noticed something unusual and informed Qin Feng. The two teamed up to set up an ambush, thwarted the enemy's spies' plot, protected the border security, and developed a secret love for each other.
