[Story] Home Run! [Story Artist] Joe Orlando [Synopsis] 
Astronauts are approaching Mars when one of their number admits to them that he is really a Martian who designed the rocket in order to return home after his crashed. The other astronauts think he has lost his mind and attempt to seize his gun which discharges, killing him. They land on Mars and notice that the body has regained its true form and realize the creature was telling them the truth and that hostile Martians are now waiting outside to absorb their bodies and return to Earth as Martian infiltrators.