On the last day of their mission to Mars, three astronauts - Ed Barkley, Alan Wells and Pete Claridge - discover a cave with hieroglyphics on one wall. They also find a pod-like object but they are knocked out after trying to move it. They make it back to their ship and begin their voyage home. Five months into that return trip they begin to have equipment malfunctions and find a small growth of alien origin. Soon, one of the astronauts begins to believe that the others are aliens who have taken over the bodies of his shipmates.
Did You Know?
Alan Wells, one of the first three men to set foot on Mars, is named after H.G. Wells
. Wells wrote the 1897 novel "The War of the Worlds" which depicts a war between Earth and Mars. See more
All the exterior shots of the spaceship show the sun behind it. Going from Mars to Earth, the sun would be in front of you. See more
The Control Voice
The true measure of a hero is when a man lays down his life with the knowledge that those he saves... will never know.