A father is startled to see pictures of his 16-year-old son with an unknown young woman on a website featuring amateur pornography. Hannah discovers that both of the boy's parents are hiding secrets.

When a woman with learning disabilities collapses while working at her parents' bakery, it is discovered she has suffered burns during a sexual assault. Hannah asks her own father about her brother.

A young man is beaten up in Citadel Park at night. He is believed to be the victim of thugs who have been terrorising gay men in the area for months, but the team have no clue about his identity.

When a porn star reveals that she has tested HIV positive, it's a race against time for Hannah and the team to discover who is spreading the virus among performers in the local adult film industry.

When DVDs containing child pornography are found among some rubbish in a derelict house, the detectives recognise a young singing star in one of them and her manager soon falls under suspicion.