The Bittering family (Mom (Cora), Dad (Henry), 3 kids (Dan, Laura, and David) arrives on Mars via rocket ship. Harry is nervous and wants to return home, but the rest of the family want stay on Mars.
Laura tells her family that the rocket ships have been destroyed when the atom bombs hit New York. They now have no way to return to earth.
This reminds me of all the ugly human things.
Henry (The dad) wants to try and build a rocket ship but no one else wants to help him build it. So the family ends up moving to the villas where that martians leave.
The Bittering family eats the mars grown food because there was no deep freeze food left and notices changes like their eye color changes, their skin color, they speak in Martians, and changes their names. ( the kid's name were Ttil, Linnil, and werr)
Henry can not build a rocket and can't leave so they decide to move to the villas for the summer ( whee the Martians live) After living in the villas for the summer the bittering family returns back to their original town to see that everything is ugly and human-like.
A rocket ship arrives on mars five years later to save everybody that has been stranded but ends up not returning to earth because they turn into martians too.