We all make mistakes. Moments that change us and the path we are on irrevocably.

For Rachel Allen it was the moment that she let her son's hand slip from hers. For Danny Simpson and Graham Harris it was the moment one of them took it.

Seven years ago Danny and Graham were just children themselves, angry, marginalized and unguided. That was, until they committed a crime so heinous that three families were left devastated. They were no longer just boys. They were monsters.

Released from juvenile detention, it is time for the boys, now men, to start again; new names, new people. Meanwhile Rachel Allen is desperately trying to move on with her new family and her ex-husband is pursuing an all-consuming quest for revenge and exposure.

Graham and Danny will always be hiding who they were, always terrified that their crime might be revealed. But are some mistakes too large, the ripples too far-reaching, to outrun forever?