During the Southern Song Dynasty, the Mongolian army besieged Xiangyang City. The hero Guo Jing led the soldiers and civilians in the city to resist desperately. Yang Guo, the posthumous son of Guo Jing's sworn brother Yang Kang, joins the Tomb Sect and begins a master-disciple love with his master Xiao Longnu that is not tolerated by the world. Yang Guo wanted to kill Guo Jing to avenge his father, but in the end he felt Guo Jing's innocent heart of "a great chivalrous man who serves the country and the people" and resolutely helped him defend the city. The heroic Condor Hero Yang Guo, who has repeatedly accomplished extraordinary feats, suffered from the pain of a broken arm and the poison of love, but he was not afraid of hardships and obstacles and devoted himself to pursuing his true love. After experiencing all kinds of hardships that the world could not imagine, the lovers finally got married.
