In the year 2199, a starship must make a dangerous voyage to the distant planet Iscandar and back to save Earth from an alien invasion.

In the late 2100s, the planet Gamilon, a world far beyond Earth's solar system, declares an invasion of Earth. The nations of Earth fight as one against the Gamilons, but one by one, Earth's fleets are defeated. When the nations of Earth refuse to surrender, Gamilon begins bombarding Earth with planet bombs, radioactive missiles that look like meteors, which gradually spread deadly radiation all over Earth, forcing what's left of humanity to retreat to underground cities. Queen Starsha of planet Iscandar contacts Earth and promises to provide Cosmo-DNA that can remove the radioactivity and restore Earth to beautiful life. She provides plans to an engine that will allow a brave, young group of technicians to journey more than a hundred thousand light-years to Iscandar, obtain the Cosmo-DNA, and return to Earth within one Earth year. In 2199, an ancient seagoing vessel is fitted with the awesome engine and launched toward Iscandar. Along the way, the intrepid crew must fight the Gamilons, who are determined to prevent the brave voyagers from saving Earth from extinction.—Kevin McCorry <[email protected]>

In the year 2199, Earth is invaded by an extraterrestrial race known as the Gamilons, who hail from a dying planet and decide to make Earth their new home. The Gamilons proceed to rain radioactive bombs on Earth, rendering the planet's surface arid and uninhabitable (but hospitable for their race). Earth's space fleet is hopelessly outclassed by the Gamilons and all seems lost... until a mysterious space probe is retrieved on Mars. The probe contains blueprints, and a message from Queen Starsha of the planet Iscandar, who claims to have a device which can cleanse Earth of its radiation damage. The blueprints are of a supercraft that can enable any ship to head to Iscandar (situated in another galaxy) and back in a year, and with these plans the denizens of Earth secretly construct the Argo, a great space battleship. A small but intrepid crew of 114 departs for Iscandar in the Argo to acquire the device... but with the menace of the Gamilons, can they succeed in time?—Q. Leo Rahman

In the distant future, the war between the human race and the Gamilon has taken its toll on the planet Earth. Constant bombardment of radioactive asteroids has rendered the planet's atmosphere uninhabitable. As a means of relief aid, Queen Starsha of the planet Iscandar offers the Earth Forces a device that can completely neutalize the radiation off the planet. For this task, the space battleship Yamato is launched from the remains of its World War II ancestor on a 148,000 light-year journey. However, the crew of the Yamato has only one Earth year to travel to Iscandar and back, or the human race will come to an end.—crevallejack