During the later years of the Kangxi Emperor's rule, his many sons were vying for the throne. The fourth prince, aided by Lusi, Nian Gengyao, and Han Chong, while the fourteenth prince had the support of martial arts master Zeng Jing. The competition between the two became intense. Lusi developed a romantic relationship with the fourth prince while Zeng Jing also had feelings for her, making their situation more complicated. Later, the fourth prince killed Kangxi and altered the imperial edict, successfully usurping the throne and naming himself Emperor Yongzheng. From then on, Yongzheng ruthlessly eliminated dissidents and even betrayed those who helped him, causing Lusi to regret her involvement. Ultimately, the fourteenth prince plotted to assassinate Yongzheng with the help of Zeng Jing and Lusi, igniting a fierce battle.

故事发生在清朝康熙末年。野心勃勃的四阿哥（万梓良 饰）在年羹尧（杨泽霖 饰）的支持之下谋权篡位，更改传位昭书，残害手足，最终顺利坐上了皇帝的宝座，将称号改为了雍正。在夺嫡之战中落败的十四阿哥（伍卫国 饰）虽然有着大内高手曾静（姜大卫 饰）的贴身保护，却也只能隐姓埋名踏上逃亡的旅途。 最终，十四阿哥还是得知了皇阿玛的死是四阿哥设计所为，心中又惊又气的他发誓要替父亲报仇雪恨。雍正和曾静同时喜欢上了名为吕四娘（米雪 饰）的女子，这段三角恋情让曾静和十四阿哥的境地变得更加危险起来。

康熙晚年，眾皇子對帝位虎視眈眈。四皇子獲呂四娘、年羹堯及韓冲等人相助，而十四皇子則有武林高手曾靜支持，兩人爭持甚為激烈。期間，四皇子與四娘互生情愫，曾靜亦鍾情四娘，三人的關係更形複雜。其後，四皇子毒殺康熙並篡改詔書，終於成功登上帝位，改號雍正。此後雍正肆意排除異己，對曾助他奪位的人亦翻臉無情，令四娘悔恨不已。最終，十四皇子密謀反擊，欲利用曾靜與四娘行刺雍正，掀起重重殺機。

康熙晚年，眾皇子對帝位虎視眈眈。四皇子獲呂四娘、年羹堯及韓冲等人相助，而十四皇子則有武林高手曾靜支持，兩人爭持甚為激烈。期間，四皇子與四娘互生情愫，曾靜亦鍾情四娘，三人的關係更形複雜。其後，四皇子毒殺康熙並篡改詔書，終於成功登上帝位，改號雍正。此後雍正肆意排除異己，對曾助他奪位的人亦翻臉無情，令四娘悔恨不已。最終，十四皇子密謀反擊，欲利用曾靜與四娘行刺雍正，掀起重重殺機。