In a faraway galaxy, super-heroes from a number of worlds join together to face a deadly crystalline menace that threatens to destroy whole planets unless they can stop it! But who is responsible for setting loose this creature? And why is this space sector so isolated? Featuring Mighty Man of Zumoor, Kell Orr of Xenon, Luma Lynai the Superwoman, Regor of Uuz, Solarman of Helion, and Skyboy of Kormo — together joining forces as the Worlds’ Finest!