DI Manson and his team investigate an accusation from a traumatised man about sexual abuse from his boxing coach when he was a child. To pursue the case they must persuade a second victim to come forward. Meanwhile, DI Manson's son is admitted to hospital to be tested for leukaemia.
A teenage girl is found wandering through night-time traffic after being missing for two years. Although traumatised from her ordeal, the Sun Hill team's priority is to discover where she has been and what happened to her, before another young victim is lured into the same net.
The body of a missing boy is found, naked and wrapped in a blanket. His infant sister is about to undergo major surgery. As the investigation continues, there seems to be confusion as to just when he was last seen alive. Meanwhile DI Manson is finding it hard to deal with his own son's illness.