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The Arrow One disappears from the radar screen and crashes. Three of the eight astronauts survive. They believe they have crashed on an asteroid. They only have five gallons of water between them. Corey intends to kill Pierson and Donlin for their water. Before Pierson dies he climbs to the top of a mountain, looks over it, and draws a symbol in the sand. Corey pays no attention to the drawing and kills Donlin. He then climbs the mountain and sees what the symbols meant: telephone poles. They had been on Earth the whole time, in the Nevada Desert.