A British Squad is sent on a training mission in the Highlands of Scotland against Special Operations squad. Ignoring the childish ``campfire`` stories heard about the area, they continue with their mission and come across the bloody remains of the Special Ops Squad, and a fierce howling is pitching the night sky... With two mortally wounded men, they make an escape, running into a zoologist by the name of Megan - who knows exactly what hunts them. What began as what they thought was a training mission turns into a battle for their lives against the most unlikely enemies they would have expected - werewolves.