In the Line of Duty 4 1989 (Hong Kong), also known as 皇家师姐IV直击证人, In the Line of Duty 4: Witness, In the Line of Duty is Hong Kong drama premiere on Jul 21, 1989
A Hong Kong cop and two American cops are onto a suspected harbor worker and are forced to team up when they discover that the suspect is a witness on the run from CIA agents and their schemers; two corrupt cops