吐蕃國師嶋摩智往天龍寺討六脈神劍秘笈, 寺僧暗將秘笈交予段譽, 譽緊記後毀之. 嶋索秘笈不遂, 傷眾僧後抓段譽往向慕容復交代, 途中段譽逃脫. 丐幫幫主喬查出乃契丹人後裔而遭排斥, 路上結識段譽, 峰被武林人仕追殺幸得虛竹所救, 三人結成兄弟. 慕容復利用表妹王語嫣哄段譽說出武功心法, 嫣不值其所為, 帶譽離去. 其後慕容復因復國無望, 終變神智失常. 喬峰不惜以武力阻止遼國君主耶律洪基侵宋, 使他許下永不侵略繼承諾. 中原武林知錯怪峰, 峰見漢胡不兩立, 以死證其丹心, 譽與虛竹欲阻止也來不及......
Plot Summary:The master Buddhist of Tubo Kingdom goes to Tianlong Temple for book of secrets of Six Meridian Swords. Tianlong monks give the book to Duan Yu and he keeps the content in mind and destroys the book. The Tubo master catches Duan but Duan runs away. Thus a series of adventures happen all over the territory of Southern Song Dynasty.
