The Royal Sisters 4: Direct Witness

Hong Kong International Police Yang Liqing (played by Yang Liqing) went to the United States to meet with the local anti-drug team leader Tony (Donnie Yen) ) were investigating a drug trafficking case in Seattle. When they tracked down a local Chinese suspect Liu Zai (played by Yuan Richu), they had already received news that Liu Zai had sneaked back to Hong Kong, so Yang Liqing and Tony returned to Hong Kong. During the pursuit, they found that Liu Zai was constantly being chased and almost died several times. Tony began to feel that Liu Zai was definitely not just involved in this drug trafficking case. When Tony and Yang Liqing continued to pursue the investigation, they discovered that the whole incident was actually related to the CIA Sixth Bureau, and Michael (played by Wang Minde), the leader of another group of Tony's colleagues, was also involved. The truth of the incident is really revealed layer by layer.