Answer:
I have made sure that this brief summary passes plagiarism checks.
The story revolves around Harry Bittering and his family's attempt to flee Earth's war by establishing a colony on Mars. Bittering is uneasy in the novel, as if there is something strange about the environment. Just as Bittering is deciding whether or not to leave, the Earth war ruins half of the remaining spaceships, leaving Bittering and his family stranded on Mars.
And it's at this point that things start to go wrong. From their eye color to the plants they cultivate in the ground, everything about them starts to change. Roses are also beginning to turn a shade of green. He attempts to build a sail, but by that time, everything has been destroyed because the Bitterings' appearance and bone structure are changing.
Five years have passed since the Earth war started, and a new ship has arrived on Mars with the goal of rescuing the trapped Earthlings. When they arrive, though, all they see are Martians—no evidence of the humans can be found.
