Following his confrontation with the nefarious DOA organization, Ken (Chow Yun Fat) is looking forward to going back to enjoying his retirement. His rest is cut abruptly short when his protégé Vincent (Shawn Yue), who's now working for Interpol, asks for Ken's help in taking down the real mastermind behind DOA, Aoi. The two head to Thailand, where DOA's former chief accountant Mark (Nick Cheung) has escaped with his daughter.
Maurice is inexplicably missing at Twilight Mansion. Although he is tracked down and survives an ordeal, but he has forgotten everything and also become another person. His girlfriend Ella feels he is somehow different. To unravel this mystery, the only option is to begin with Twilight Mansion. Strange things keep happening at Twilight Mansion. Some esports team venture into the virtual world, and there is some baffling kidnapping story. “Korean craze” is also triggered by comet particles, and there are other happenings. After encountering weirdos and experiencing puzzling incidents, Maurice and Ella are more deeply in love than ever before. They are adamant that they are meant for each other. However, Ella has probably fallen in love with unreal Maurice.
The Hong Kong Airport Special Police Unit (ASU) is a special police force responsible for maintaining public and aviation security, counter-terrorism, key personnel protection, disaster support and many other areas. Encountering different situations on duty, they see the joys and sorrow of life that make them reflect on their own lives. With every step forward, they establish a sense of mission as the airport security police.
