A deadly hit-and-run is initially dismissed as an accident. When a witness belatedly comes forward with new evidence, Homicide re-opens the case - and a can of worms - when it turns out the victim's employer is none other than the Police Union. But this won't be the only unexpected turn in this case. It's the revelation that the Union is being investigated by the Office of Professional Standards that really surprises our team, especially Bernice Waverley. To catch a killer, Waverley will have to face the man who led the charge in taking her down - Michael Mellor. But what is he hiding? Will Waverley be able to work alongside him - and in doing so, uncover the truth he's desperate to conceal?