King Hyeonjong and Kang Kam-chan led the 8-year-long 2nd and 3rd Goryeo-Khitan Wars to victory and began an era of peace in East Asia and prosperity in Goryeo.
The culmination of the war sees Goryeo emerging triumphant over the Khitans. Kang Gam Chan's return is a scene of jubilation, with the citizens of Gaegyeong celebrating his victory. Yet, Wang Sun, undeterred by the momentary glory, devises a plan aimed at ensuring enduring tranquility in Goryeo.