When cosmic energy strikes the Earth, astronaut Stacy Macklin is given another chance to become Lady Lunar, but this time as a super-heroine! And she is not the only one, as she meets several other heroes and villains in similar situations: Karb-Brak the Andromedan, Remoni-Notra the second Star Sapphire, Moonman, Pulsar, and Skyman! To learn the secret of their cosmically restored powers, they must embark on an epic voyage to outer space! Meanwhile, various worlds are bombarded by mind-controlled armies bent on destruction! Who is behind this cosmic conquest? And what has all this got to do with a humble bookstore owner named Julius Leiber? Guest starring the Honor Team of Thronn, Queen Bee, Ron-Avon, and Genia, and introducing Cobol the Starknight!
When a powerful new weapon is stolen from a military base, apparently by the Assemblers, the Justice League heads to the planet of Angor to find out why! Can the JLA broach the touchy subject without setting off a big brawl with the marvelous super-hero team?