sorry, masih bahasa inggris

21st century Hong Kong
Hong Siu-lung is a 21st century VIPPU special agent in Hong Kong. In the first episode, Hong and his colleagues stand guard at an exhibition of the First Emperor's Terracotta Army. One of Hong's colleagues notices that one of the terracotta warriors bears a striking resemblance to Hong. Moments later, wealthy businessman Lee Siu-chiu is attacked and held hostage at the museum by a madman who had suffered losses in the stock market. Hong rescues Lee and defuses the crisis.

Hong is unhappy despite his success in his career. He has just broken up with his girlfriend, Chun Ching, after a seven-year long relationship. She insisted that they tie the knot but he preferred to continue their relationship without a proper marriage. Chun married another man and Hong becomes depressed.

Time travelling
Impressed with Hong's rescue attempt earlier, Lee Siu-chiu and Doctor Wu Yau recruit him for a secret time-travelling experiment. Hong agrees to help them in exchange for an opportunity to travel back in time to salvage his failed relationship with Chun Ching. He is tasked to travel back more than two thousand years in time to China's Qin Dynasty era, half an hour prior to the coronation of Ying Ching in 247 BC, and document the event with a digital camera before a swift departure. However, a critical error occurs during the traveling stage and Hong returns further back in time by three years than originally planned. He is now trapped in the Zhao state of the Warring States Period in 250 BC.

In order to return to the future, Hong has to make an arduous journey across thousands of miles in ancient China to activate a device at a specific location and time. He was warned that making even a slight change in the grand scheme of events will trigger a chain reaction of catastrophes that will alter history.

Warring States Period
Hong enjoys a series of adventures in history. His knowledge of the 21st century, intelligence and experience as an elite special agent, as well as his prowess in martial arts, enables him to make a strong stand in history. He enters the service of various lords and nobles, and becomes a valuable ally to them. Concurrently, he becomes involved in romantic relationships with four women. The first, Sin-yau, is a wandering female assassin and the first person he meets after travelling back in time. The second, Wu Ting-fong, is the beautiful but spoiled daughter of a wealthy noble. The third is a pretty female scholar named Kam Ching, who resembles his 21st century girlfriend Chun Ching in appearance and shares a similar name. The last is Princess Chiu Sin, the daughter of the king of Zhao, who dies in a tragic incident later. He also befriends the king's sister Chiu Nga and her son Chiu Poon. Meanwhile, he foils the evil plans of Chiu Muk, a secret agent from the Chu state, and becomes Chiu's enemy. Chiu Muk's henchman Lin Chun also sees Hong as his greatest rival.

Helping Ying Ching rise to power
As Hong's future is dependent on Ying Ching's succession to the throne of the Qin state, it is imperative that he makes the event a success. Hong tracks down Ying, who is held hostage in Zhao, and Ying's mother, Lady Chu Kei. However, he is shocked to discover that the real Ying has died. As Lady Chu had never seen her son after his birth, she mistakes Chiu Poon as her son. Desperate to return to the 21st century, he forces Chiu to impersonate the deceased Ying Ching.

They return to Qin together and face new threats from the chancellor Lui But-wai and his right-hand man, Lo Oi. Lui believes that he is Ying Ching's biological father and he schemes to place his son on the throne and secure his power over the empire. Lo Oi, on the other hand, is actually Lin Chun, and he is aware of Ying Ching's true identity. Hong helps Ying clear all obstacles to the path to the throne and Ying eventually becomes the king of Qin.

Although having accomplished his mission, Hong's hope of returning to the 21st century is ruined when the time signalling device fails to work as the battery has expired. In panic, Hong recalls some lessons at school about electricity and he enlists the help of his friends to build a new power source. The experiment is successful but Hong hesitates to return home at the last minute because he has already developed true feelings for Kam Ching and Wu Ting-fong.

Hong stays behind and continues to aid Ying Ching in building the new Qin Dynasty through the annexation of the other seven states and reunification of China. Ying holds absolute power and gradually becomes more corruptedy, morphing from the original naive and kind Chiu Poon into the ruthless tyrant Chun Chi Wong.

Destiny
Ying sees Hong as a valuable ally in his future endeavours and wants to retain him as an adviser. However, Hong begins to feel sorry when he sees the evil creation of his efforts, fulfilling the predestination paradox. He is aware that he is not destined to leave his mark in history and refuses to stay in the imperial court. He leaves with Wu Ting-fong and Kam Ching, who are both happily married to him at last. Ying sends his troops to pursue Hong, based on the notion that "if you're not with me, then you're against me". Eventually, Ying decides to send Hong into exile and he decrees that the name "Hong Siu-lung" shall henceforth be extinct. All books and historical records pertaining to Hong are ordered to be destroyed, which leads to Chun Chi Wong's notorious practice of the burning of books and burying of scholars.

Hong and his family find paradise in the plains far away from the urban regions. Hong and Wu Ting-fong have a son. In the final moments of the last episode, Hong's son is revealed to be Hong Yu, who will eventually grow up to become a prominent military general and overthrow the Qin Dynasty.