Michael Kiu Wai Miu portrays "Ken," someone who endured an unfair conviction leading to two decades behind bars. Upon his release, he sets out for retribution against those responsible, teaming up with his daughter, “Galie” (Baihe Re), and a pair of questionable allies. Their plan involves infiltrating a clandestine scientific research center and utilizing a time machine – one that Ken himself contributed to developing – to journey back to the Qin dynasty. The objective? To take control of the Emperor. They also intend to acquire advanced facial recognition technology, allowing Ken to assume the Emperor’s identity and alter historical events. However, he hasn't anticipated that the Emperor (Raymond Lam) is a formidable opponent, nor has he considered the hidden agenda of “Hong” (Louis Koo), his mentor for twenty years, who is entangled with the time machine itself. Transported nearly two and a half millennia into the past, equipped with cutting-edge technology, Ken’s arrival threatens the local populace with an influx of motorcycles, hoverboards, and firearms. I found this film quite enjoyable due to its successful blending of modern elements with ancient traditions. The action sequences are plentiful, Koo delivers a compelling performance as a warrior, and his son “Bowie” (Kevin Kam-Yin Chu) – named after the musician – also contributes well. The gadgets are integrated skillfully, avoiding disruption of the cultural fabric of 200 BC China. Humorous exchanges add to the entertainment value, with the film maintaining a brisk pace reminiscent of "Dr. Who" combined with "The A-Team." It seems likely that another installment, perhaps a prequel, could be in development.

Source on TMDB