Callaghan and Pauli investigate the case of a missing boy, and soon they are hot on the trail of a previously convicted pedophile named George. At first it sounds too easy that George could have done it again, but soon Pauli finds a breakthrough that stuns the team. Being a father to three little girls the same age of the missing boy, DI Jones begins to take this case personal. All he so desperately wants is to find the missing boy alive and well. Meanwhile, Callaghan has to watch his back for there are some people in Liverpool who aren't willing to forgive or forget that Mickey Sullivan died in Callaghan's presence.
