Planet Comics #4

In "Slave Planet," Flint and Mimi find themselves stranded on Jupiter after a sudden attack by a space monster during their journey home. Forced to land, they must confront the planet’s terrifying guardians—the Great Eye, the Great Ear, and the Great Mouth—before they can hope to escape.

In the 1940 science fiction tale "null" from Planet Comics #4, the inhabitants of Auro's planet gather in wonder as a mysterious spacecraft crashes into a lake. When Auro ventures to investigate, he uncovers a young Prince of Saturn, fleeing his tyrannical uncle, stranded in the wreckage of his shattered vessel.

In "null," the Comet races through space to intercept an Earth ship hurtling toward Vegeto, a planet teeming with deadly flora. As the ship descends, the Comet must act fast to save its crew from the planet's relentless, hostile vegetation.

In "null," Captain Cole finds himself at the center of a deadly mystery during the Third Centenary of the Solar Police Force, when a sudden death ray cuts down dancers at a gala. As he investigates, the trail leads him to his old nemesis, Felon, now selling his deadly skills to Earth's aggressor nations.

Spurt ventures to Mercury to confront the fearsome beaked men, who terrorize space trade routes with their detachable bat wings and demand ransoms. As he navigates the alien landscape, he must outwit a foe as ruthless as they are bizarre.

In the silent vastness of space, Lt. Crandall receives a chilling warning from Dr. Curan: the Moon is on the brink of exploding from a dangerous buildup of hydrogen gas at its core. With time running out, the fragile peace aboard the ship is threatened by the presence of Dr. Zynnon, a passenger whose deep-seated hatred for humanity could ignite a far greater disaster.

In the 1940 science fiction tale "null" from Planet Comics #4, the colonel and Dwight devise a scheme to lure Kenny back into service—only for their deception to unexpectedly become reality when Carr chooses to re-enlist to fight off an alien invasion.

In the vast silence of space, North answers a desperate SOS from a Pluto-bound scouting party, only to learn they've been taken by alien pirates. When he requests aid, the commandant sends Gale Allen and her Women's Space Battalion—much to North’s reluctant surprise—and the mission to rescue the captives begins.

In "The Strongest Man in the Universe," Jo, a giant from another world, finds himself drawn into a sudden conflict when a band of fierce North Pole dwellers—racing across the frozen tundra in high-speed sleds and wielding deadly ray guns—launch a surprise assault on North America. With their advanced technology and relentless advance, they threaten to overwhelm the continent, forcing Jo to step forward and confront a danger far beyond his usual solitude.