Lana and her team are called in to investigate a London black cab that has been abandoned in a wasteland - and soon realise that something more sinister is going on.

Counter Terrorism Police work to establish a link between the victims of the incidents, but a well-meaning intervention backfires and leaves the unit at a loss.

Counter Terrorism Command learn more about the recent murders with the help of Lana, but their progress doesn't go unnoticed by the bomber as their campaign deepens.

All hope looks lost for the remaining missing person until a new lead emerges - with Lana now known to the bomber, she must work harder than ever to avoid his traps.

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