Gold leads an operation into clearing a red light district of streetwalkers. Harman and Keane arrest two prostitutes for breach of the peace, but Harman soon links one of them to a robbery. Kapoor and Casper deal with a man also looking for a prostitute, whom he suspects of robbing him. However, when he collapses, Kapoor discovers that he has serious head injuries. Meanwhile, Nadir subsequently arranges for one of the prostitutes arrested by Harman to be released as a favour for Kristen Shaw and Paul Haskew - but when the girl is found badly beaten, Manson discovers she is a Columbian drugs mule, and that Shaw could be involved in something much greater than they expected.