In the pulse-pounding premiere, the League bands together, only to witness its most powerful members calling it quits! What enigmatic foe is responsible for Superman, Wonder Woman and Captain Atom throwing in the towel? Can Zatanna, Batman and The Flash pull it together before it's too late?

When a young boy on the planet Rann wonders why his world doesn't have its own heroes, Adam Strange must show him what it means to be a hero!

Blue Beetle is all ready to enjoy a relaxing night of monitor duty at the Watchtower, but when chaos erupts across the globe, he realizes he's the only team member on call. Yikes!

Supergirl takes the spotlight in this collection of adventures that prove she is much more than a sidekick! Discover the events that prepare Supergirl to face her past fears and embrace her future. Throughout this collection, witness Supergirl team up with Superman and the Justice League to confront treacherous encounters with some of DC’s most notorious villains, like General Zod, Lex Luthor, and Darkseid. Join the adventure as Kara gets accustomed to life on Earth and fulfills her desire to help the world. Collects Superman Adventures #21, #39, #52, and Justice League Unlimited #7.

The unpredictable Madmen steal a nuclear weapon! To get it back, the team must turn to someone whose thinking is as off-kilter as its foes. Enter the Creeper!

When Mirror Master traps the Flash and sets his sights on the rest of the Justice League, it's up to Jay Garrick—the original Flash—to save the day!

In the deep reaches of outer space, Superman lies injured and powerless on a remote planet under a red sun. And the only one who can save the Man of Steel is...Space Cabby?!

Mary Marvel is feeling a little overwhelmed at the Justice League Watchtower, so Supergirl decides to take her out to watch an actual League mission.

A lovers’ quarrel between Heat Wave and Killer Frost threatens to blow apart Star City! JLU lovebirds Green Lantern, Vixen, Green Arrow and Black Canary arrive to save the day, but when they begin to have similar flare-ups, will Star City suffer the consequences?

Gypsy's impetuousness causes Martian Manhunter and the rest of the JLU team to distrust her dire warnings. Can she convince them to listen when she learns that heads of state are imperiled by an army of giant killer robots?