The team is on the hunt for major vehicle thief Jed Wicklow, but when a car chase leads to his death, Gene stands accused of causing it through reckless driving.
Alex is adamant that there was something wrong with Jed at the wheel and wants to prove that the crash wasn't Gene's fault. The deceased Jed was a Romany gypsy, and hostilities run high on the camp as CID heavy-handedly try to uncover the circumstances of his death. But in an investigation that's already met with resistance, someone in the police force also appears to be standing in their way.
Gene needs to get the result he wants without treading on the toes of his revered superior, Detective Inspector Mackintosh, known to all as Supermac. But will Alex be able to trust that he'll not take the easy option of a cover-up?
As the divide grows between Gene and Alex, she gets another visit from the mysterious stranger whose presence could be the key to her finding her way home.