When convicted killer Dean Price is found dumped on wasteground, having been attacked in the same way as his victim, Alex Wojnar, the team realise that they may be dealing with a case of revenge. Wojnar's sister becomes the initial suspect for the attack, but when the team uncover Price's phone in his brother's house, they realise that Price may not have been guilty of murder. When DNA evidence reveals that Wojnar's sister's husband was present at the scene of his murder, family loyalties become divided, and following some frank confessions, the team soon uncover that Price's nephew may have been responsible for the attack of which his uncle was sentenced.