Scandal looms over the team when Lorraine's dangerous obsession with a known pimp is discovered; although Vickers and Joe both stand to lose if the affair is made public, Vickers exposes his own corruption.
The ambitious manager of a pole dancing club suspects her uncle of using it to run a prostitution racket; Joe sends Vickers undercover to investigate but begins to imagine his boss is colluding with the suspect.
An investigation into an amusement arcade manager suspected of renting out young runaway boys sees Adam drawn into an alarming and unfamiliar world when he is mistaken for a shy john.
Joe is attempting to nail a violent pimp when the mother of one of the young prostitutes recognizes Vickers and threatens to reveal details of their lurid past together unless the pimp is put away.
When an investigation in a suburban house unearths evidence of child pornography, Chappel is forced to pose as one of the pornographers in order to secure enough evidence to convict the perpetrators.
Chappel goes undercover in a sex-offender prison.
Chappel becomes embroiled in the vicissitudes of justice.
Chappel runs into his former boss in a brothel basement.
Robinson ignores Chappel's advice; a gun is discovered at Clare's.
Sgt. Robinson is suspected of murdering pimps; Chappel falls for a former prostitute.
The team goes under cover at a strip club following a tip-off about illegal activities.
Chappel investigates how girls from a children's home become prostitutes.
Chappel arrests a young prostitute; Dougie awaits his appeal; a pimp assaults Cheryl.
Dougie falls in love with a girl from the escort agency.
When Dougie infiltrates an escort agency, he gets involved with the girls.
Cheryl needs to find the boy in the film to bust the porn ring.
Robinson earns promotion to Inspector and Chappel demands that he helps him on one last case; meanwhile a new member of the team gets dangerously close to her work.
Cheryl works under cover in a nightclub; an old case haunts Chappel.
Hinkley the pimp turns to the police to find his kidnapped daughter.
A police inspector gets personally involved in a turf war between pimps.