In the year 2060, a hundred miles above the Earth orbits the High Rock - a maximum security prison crammed with 10,000 of the most vicious criminals from the world below. Falsely accused of betraying his government, Harry Thompson is given a twenty year sentence on the Rock, but amongst thuggish guards controlled by Warden Worldwise and psychotic inmates like Big Red One, the chances of staying alive for that long are looking pretty slim!