When forensic scientist Rhona MacLeod returns to her roots on Scotland's Isle of Skye, a chance encounter in the woods behind a nearby activities centre leads her to what seems to be a crime scene, but without a victim. Could this be linked to a group of army medics, who visited the centre while on leave from Afghanistan and can no longer be located on the island? Enlisting the help of local tracker dog Blaze, Rhona starts searching for a...