An alien pod hurtles through space, heading for Earth. It crash-lands in a ball of flame somewhere in the Scottish Highlands, apparently unseen. Three hundred years later a man walks alone amongst the unchanged landscape, followed by the unsettling growl of a beast. He looks around for the source of the noise but sees nothing, and so continues on his way. A moment later the noise sounds again and he looks back over his shoulder a second time. On this occasion he sees the creature following him and runs for his life. However, he is unable to escape. The giant beast pounces and drags him to the ground… (thetvdb.com)