Answering a distress signal, Commander Koenig is forced to crash-land his Eagle on Entra - moon of the planet Ellna - which turns out to be the planet's penal colony, and Koenig finds himself a prisoner of the beautiful Elizia and her equally beautiful prison guards.
A fiendish, and lethal, device that eats electricity, designed as the ultimate killing machine, gets loose in a rural English village and electrocutes everyone it comes into contact with.
