描述
：A young man called Yun Buqi travels through time to the Zhenguan Reign Period accidentally. Then he comes across Li Anlan, who looks exactly like his deceased girlfriend. They cross paths. Yun has to use the name of his ancestor “Yun Ye” to live in the Tang Dynasty. He knows nothing about politics and military affairs. However, he is predestined to write his extraordinary story with his learning in this era featuring swords and brush pens.
分集簡介
：玉山爆炸之時，李安瀾分心落入圈套，尾隨她而來的公輸木為了救她，引開禁軍的追捕。李安瀾看見公輸木被抓。她一時情急，躲進了東宮，本想求李承乾救公輸木。卻被李承乾突然發難。
李承乾跟李安瀾過招，發現李安瀾的身份，又驚又喜。李安瀾求他救公輸木，可此時，已有禁軍來稟，說刺客已經服毒自殺。隔著屏風看見公輸木的屍體，李安瀾緊緊捂住嘴。
打發了禁軍之後，李承乾趁機說服李安瀾幫自己起事，李安瀾應允。
李泰和雲燁均為玉山爆炸一事承擔了責任，李泰以私藏炸彈，用心不軌之罪被幽禁，雲燁則入獄等待李二從皇陵回來親自審問。
李承乾去見李泰，兄弟倆對質，李泰對李承乾竟然想炸死自己倍感痛心，他坦誠自己所做的一切都是為了重新激發李承乾的鬥志，不想看見李承乾為了一個辛月沉溺自己，可李承乾完全不相信李泰的話，認為李泰就是想奪嫡爭位，他對李泰表示不屑。
雲燁在獄中，越想越覺得事有蹊蹺，他讓旺財找黃鼠幫忙，與其互換身份。
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