The Emperor of Khitan is infuriated as he loses the first conquest expedition he is leading. He starts advancing south with his army towards Samsuchae to destroy Goryeo's main force. Therefore, even though Officer Yang manages to defeat Khitan soldiers, the main force assumes Heunghwajin has lost the battle as they are trapped. Officer Yang must find a way to send the word. 

Hyeonjong sends Deputy Minister Kang to Khitan's camp as an envoy to relay his message. However, the commander of Khitan's army does not trust his words and decides to hold him back in their camp. Furthermore, Deputy Mayor Won of Seogyeong Fortress gives up on fighting against Khitan and is about to surrender.