Three man survived of a crash and try to survive and think they are in an other planet. So all things are for survival and they tried to find something while one of the survivor try to survive to any cost even to kill the others and that happened. So scared to not survive, he killed the others for their ressources. But the twist at the end let us know that they never leaved earth and he realised that he will be in big trouble and regret his acts. A nice episode who question the people to survive and the selfish acts of some of them. I really enjoyed that and i really get into the episode. Nice revelation too.