When security foreman Gary Mallon is fatally wounded during a robbery at a Blyth container port the evidence points to an audacious heist that went awry. Vera begins to suspect an inside job. But the investigation takes an unexpected turn when Gary’s ex-wife contacts police with the news that their 13-year-old son is missing. Gary Mallon was acting under duress - the victim of a tiger kidnapping. His son was being held as collateral - but where is he now? In order to rescue the missing boy, Vera first needs to work out who was behind the robbery. Further complications ensue when she finds herself forced to collaborate with an NCA Officer who is working on a covert surveillance operation with links to organised crime. As Vera closes in on the kidnappers a misstep in the investigation leads to tragic repercussions, and she finds herself taken off the case.