In the Line of Duty 4

Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.

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  Cynthia Khan

  Insp Rachel Yeung Lai-Ching
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  Donnie Yen

  Captain Donnie Yan
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  Michael Wong

  Captain Michael Wong
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  Yuen Yat-Choh

  Luk Wan-Ting
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  Lisa Chiao Chiao

  Luk's Mother
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  Wai Gei-Shun

  HK Police Officer
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  Yuen Shun-Yi

  Drug Dealer
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  Michael Woods

  Black Fighter on Rooftop / Motorbike
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  John Salvitti

  Fighter in Alley
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  Paul Wong Kwan

  Killer at Hospital