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PC. Amy Harris finds a young Asian man dead in a police interview room, and realises that her fellow officers are framing her for murder.
Amy, newly recruited to the Ghost Squad, investigates a group of police officers who have been working under cover to expose a sex trafficking network.
Amy is sent under cover to work alongside a police sergeant and expose his corruption.
Amy investigates the background of a Chief Superintendent in line for further promotion, but spots her dining with her own boyfriend.
Amy has to discover which of three police officers working on a witness protection programme is corrupt, and make sure that the witness reaches court.
Amy has to get close to a CSU officer under investigation by the Financial Crimes Unit, and find out where her money is coming from.
Amy goes under cover to investigate a detective inspector accused of involvement in drugs and prostitution.
