二太子雷振宇（徐二牛）无心功名，不欲与大太子雷振寰（张翼）争夺战神一位，留书出走。流落乡间，且收得三庶民为徒，其中对英紫阳（萧玉龙）另眼相看。另一方面，寰得幕僚段荣禄(王伟)之助，篡父弑叔，既得「战神」之名，继承大统。与此同时，宇惊闻父皇驾崩恶噩，赴京奔丧，随即揭穿寰及段荣禄之恶行，兄弟遂反目成仇，宇更惨被废去武功。 最后，宇把所有希望寄托在阳身上，并将其认为义子，与寰再逐战神之名。

The second prince Lei Zhenyu (Xu Erniu) has no intention of fame and does not want to compete with the eldest prince Lei Zhenhuan (Zhang Yi) for the title of God of War, so he leaves a letter and runs away. Living in the countryside, he took in three common people as his disciples, among whom he looked at Ying Ziyang (Xiao Yulong) with special eyes. On the other hand, with the help of his aide Duan Ronglu (Wang Wei), Huan usurped his father and killed his uncle. He became known as the "God of War" and succeeded to the throne. At the same time, Yu was shocked to hear that his father had passed away and went to Beijing to attend the funeral. He then exposed the evil deeds of Huan and Duan Ronglu, and the brothers turned against each other. Yu was even more miserable and was deprived of his martial arts skills. In the end, Yu pinned all his hopes on Yang and regarded him as his adopted son, and he and Huan then pursued the name of God of War.