Gold and Valentine find a parole officer assaulted and locked in the boot of his car, but the victim may just be a suspect in another crime when his assailant claims he raped his incarcerated wife. Nixon and Masters discover he has been offering sex in exchange for parole, but their investigation takes a dark turn when one of the prisoners attempts suicide. Meanwhile, Hardy witnesses a mugging on his way into work, but discovers that the alleged victim may be heading up a scam exchanging cash for passing marks on the British Citizenship test. After getting injured twice, Hardy takes a shine to St. Hugh’s nurse Tash Niles, who later suggests he moves in with her after the departure of his grandmother to Jamaica.