Long Arm of the Law IV Underground Express (1990)
The final entry in Michael and Johnny Mak's Long Arm of the Law series, Underground Express once again tells a story of gangsters versus police, focusing on the difference between how both factions act depending if they're coming from Hong Kong or Mainland China.
- Release Date: 1990-06-05
- Runtime: 1h 40min
- Production Company: Johnny Mak Production Co. Ltd.
- Production Country: Hong Kong
- Director: Michael Mak Tong-Kit
