||Martians are ready to attempt a fifth expedition to the planet Earth, hoping to have better luck than the previous four, which had met disaster. Feros is highly skeptical, believing that no human life could exist on a planet that is filled with deadly oxygen poisoning. When Astros and Feros land on Earth, Feros knocks out Astros, traps Crabbe and Phelps, and returns them to Mars while demanding a court-martial for Astros for cowardice. Feros is made the new King of Mars, and attempts to have the Earthmen killed along with former King Nemonalus before the truth be known.
||Pencils: Ed Martinott [as Martinott] (signed) | Inks: Ed Martinott [as Martinott] (signed)|
||Buster Crabbe (Professor of Ichthyology); Johnny Phelps (one of Crabbe's students); King Nemonalus (of Mars); Astros (a Martian explorer); Demondon (a Martian explorer); Feros (villain, a Martian explorer)