A horror/thriller about a Top Secret military base in the desolate Welsh mountains which is being staked out by three young reporters looking for a story on experimental test planes, but who discover a creature which the military and Government are testing and who’s fur has the ability to turn invisible in moonlight.

A vicious thunder storm breaches an electrically fenced paddock and the creature escapes onto the dark and misty moors where the trio are camped. They are hunted both by the mysterious invisible creature and the military who will stop at nothing to keep their Top Secret experiments a secret from the world.

Only one man, a photographer, can help them. He has managed to photograph the Silverhide and he holds the key to their survival and also to the story of this terrifying killing machine ever being told to the rest of the world, if he can only save them or himself…