Forbidden Planet

The cruiser C57T of the United Planets left its terrestrial base more than a year ago to accomplish a special mission to the planetary system of the first magnitude star : Altaïr. On the approach to Altaïr, the terrestrial flying saucer, headed by commander John J. Adams, slows down and puts in a socket around the fourth planet : Altaïr 4. The mission of the cruiser is to find the survivors of the spaceship "Bellérophon" that landed there 20 years ago and had not been heard of since...