The crew of Shackleton moon base is being hunted and killed. Mining operations are being destroyed, tourists killed, and all evidence points to an engineer who's gone mad, using a human-controlled robot to go on a murderous rampage. Or is he? No matter what this top-notch crew tries, the death and destruction continues. How can one engineer outwit the entire base crew? How has he managed to make his equipment do the impossible? As the situation grows...