So a group of Stone Age wanderers are searching the bleak wilderness for a new home when they begin to suspect that they are being stalked. Noises in the woods unsettle them, but they see nothing. Suddenly, though, one of their number is taken and the leader "Adem" (Chuku Modu) must make some difficult choices to ensure the survival of both his son and of his pregnant wife. The denseness of the Scottish forestry along with some creative use of light, shadow and audio goes some way to keep the film interesting but the plot itself is really weak and the actors - perfect teeth, skin, leather clot...