A dangerous Islamic terrorist. A safe house in the middle of Snowdonia. Can DI Ruth Hunter and DS Nick Evans deliver the suspect safely before there is a deadly rescue attempt?

Detective Inspector Ruth Hunter has made a new life in Snowdonia away from the murder and mayhem of London. Ruth and her partner, DS Nick Evans, are given the task of transporting a dangerous Islamic terrorist across Snowdonia to an MI6 safehouse, which they see as no more than a tedious waste of time.

However, their journey into the heart of Snowdonia turns out to be anything but boring. As they fight to keep themselves and their suspect alive, Ruth and Nick uncover a web of corruption, deception and religious extremism that shocks them both to their very core.