The brothers Bi Ji and Bi Ren accidentally entered the time tunnel and were suddenly sent back to the Northern Song Dynasty a thousand years ago. The famous figures of the Song Dynasty, including the 108 Liangshan heroes, appeared one by one in front of them. The two were playful and willful, and they did not want to leave. One day, Bi Ji stepped on a female corpse by mistake and buried the female corpse with good intentions, and thus met the female ghost Xiao Qian. Xiao Qian was killed by Ximen Qing before her death, but Ximen Qing had a Buddha statue to protect him, so Xiao Qian failed to avenge her. Liangshan was haunted, and the villagers were in panic. Ji and Ren lived in Wu Dalang's house and became friends with Wu Song. Later, the two met Song Jiang, Lu Zhishen and Yan Qing, a group of Liangshan heroes, and used modern technology to make everyone misunderstand Ji Ren as a martial arts master. The Liangshan haunted was originally a trick played by Ximen Qing and Huang Po. In order to facilitate Ximen Qing's secret meeting with Pan Jinlian, Huang Po pretended to be a saint to deceive ghosts and make a profit from it. Song Jiang uses the excuse of investigating the haunted incident to actually find his first love, Jinlian. Pan Jinlian wants to break up with Ximen Qing and return to Song Jiang's arms. Ximen Qing asks Song Jiang for a breakup fee, and Song Jiang immediately becomes murderous. At this time, Wu Dalang takes an overdose of Bi Ren's ecstasy and dies of the poison. Wu Song kills Jinlian by mistake in a rage and goes to the Lion Tower to seek revenge on Ximen Qing. Bi Ji and Bi Ren rush to help.