请调整浏览器窗口大小或者请使用手机查看!
An Eagle returns from a promising new planet with a strange passenger: Leo Russell, Helen's husband who died five years ago and warns the Alphans not to land on the planet.
The aliens find a psychopathic immortal alien banished by his own people, who plans to begin his "experiments" anew on his rescuers.
An alien spaceship heading to Earth crashes on the Moon, and as the inhabitants make repairs they offer to take one Alphan with them. But at what cost?