Challengers of the Unknown

The Challengers are back to confront mysteries that defy time, space, and everything we think we know!

The Challengers of the Unknown are back, and this time, the stakes have never been higher. As the mysterious Darkseid shockwave rips through the DC Universe, reality itself begins to unravel. Ace Morgan, June Robbins, Prof Haley, Red Ryan, and Rocky Davis have been called to investigate the Watchtower’s cosmic rifts alongside the Justice League. But when a sinister enemy from their past emerges, the team is thrown into a desperate race to seal the fractures that threaten the galaxy. Their odyssey takes them from outer space to the deepest parts of Earth’s oceans, where unimaginable dangers await.

Are the Challengers up to the task, or will the unknown prove fatal?

Challengers of the Unknown is not only a crucial revitalization of classic DC characters created by the legendary Jack Kirby, it’s also a key companion to flagship series Justice League Unlimited and a major part of DC’s bestselling All In initiative!

Christopher Cantwell is an Eisner-nominated writer, producer, and director known for his work across television, film, and comics. He co-created, executive produced, and served as showrunner on the critically acclaimed series Halt and Catch Fire, and he directed the 2019 film The Parts You Lose. In comics, Cantwell has written titles like Doctor Doom and Iron Man for Marvel, Plastic Man No More! for DC, Star Trek: Defiant for IDW, and original works such as She Could Fly (Berger Books), Briar (BOOM! Studios), and The Blue Flame (Vault). He is also an executive producer on the adaptation of Paper Girls and currently serves as EP and showrunner of The Terror: Devil in Silver, set to air on AMC in 2025.