The well water in Qingchuan Town turned red overnight, and the townspeople developed fevers. Suspecting that Luoxia Valley had poisoned the water, everyone wanted to go up the mountain to demand accountability. Wandering knight Shen Yanzhou and female physician Su Wanqing joined hands to investigate the source, discovering that the old canals were silted up and red algae were thriving, which was not man-made. By day they took water samples and tested medicine, and by night they dredged the hidden canals, pacified the townspeople, persuaded Zhou Tieshan, and resolved the misunderstanding with Luoxia Valley. In the end, both sides joined forces to guide clear spring water into the town, and Qingchuan Crossing recaptured its rosy glow. The entire drama conveys the martial arts righteousness of stopping disputes with wisdom and helping each other towards goodness.