At the end of the Song dynasty, the Mongols, Jin, and Song were locked in constant warfare. Three childhood friends from the Southern Song, Li Tingzhi, Li Jixian, and Zhang Shijie, studied and trained in martial arts together. Ambitious, brave, and resourceful, they joined forces to defend their homeland and country. Li Jixian went on to meet renowned officials and generals such as Yu Jie, Yang Liangjie, Li Fu, Wang Jian, Wen Tianxiang, and Lu Xiufu, as well as heroes of the martial world such as Huitong, the Three Immortals of Yuxu, the Four Swords of Taoyuan, the Swordsman of Xiaoxiang, and the Six Immortal Caves of Jiannan. Though they came from different backgrounds and had diverse temperaments and aspirations, in the end they all joined the ranks fighting to repel the enemy and protect their country. Loyal to their nation, righteous and heroic, and outstanding in both civil and martial arts, they moved between the political arena and the martial world, repeatedly clashing with treacherous ministers, traitors, enemy forces, and personal foes. As the Southern Song suffered one defeat after another and eventually fell, they gave their lives one by one. Those who survived, seeing the Yuan dynasty usher in a new era, came to understand that unifying the land was the people's will. They followed the tide of history and withdrew into the mountains.
