the original Challengers vow to explore Hypertime, "the greatest unknown", to find Red. Two Challengers partake in Infinite Crisis. Rocky Davis and Prof Haley help stem the escape of prisoners from Blackgate Prison. Rocky fights in the Battle of Metropolis. He is one of dozens of heroes fighting the opposing army of the Secret Society of Super Villains. The Society is ultimately defeated. Later, on a world without superheroes, a blogger, a hip hop artist, an eco-terrorist, and two others discovers they'd been genetically enhanced and chip-programmed to be soldier-pawns by the Hegemony, a cabal of billionaires who secretly run that world. Made slaves on a Moon base, three Challengers blow up the base, escape to Earth, and declare war on the Hegemony until (like the obliquely mentioned earlier Challengers) their "borrowed time" runs out. Other versions The Challengers make a brief appearance in the Elseworlds miniseries Conjurers, set in an alternate DCU where magic is a part of mainstream society. These are the "Volume 3" Challengers, but given the nicknames of the originals: Kenn is "Prof", Clay is "Rocky", Brenda is "Red", and Marlon is "Ace". Since Kenn was always shown as the most "mystical" of the new Challs, it makes sense that he would be "Prof" in a magical universe, rather than Brenda, the team's scientist. During Superboy's trip through Hypertime, referenced above, he briefly visits an Elseworld in which the Challengers were himself, Ace, Guardian, and Dubbilex. The June who arrives in the DCU at the end of that story is also an Elseworlds version, coming from a universe where she was a full Challenger from the beginning. She was apparently exchanged with the June of the main timeline when she was struck by Hypertime energies. The Challengers also made brief appearances in JLA: Another Nail (when all time periods meld together) and The Adventures of Superman Annual #7 (as part of a strikeforce of non-powered heroes). They were prominently featured in Darwyn Cooke's DC: The New Frontier miniseries (2003–2004). Various members were essential in many battles against menaces that arose throughout the series. In the 1996 crossover series Amalgam Comics, the Challengers were merged with the Fantastic Four to become Challengers of the Fantastic. Villains The Challengers of the Unknown have faced an array of villains: Amenothoth – An ancient Egyptian villain. Brainiex – Sentient computer/spaceship, allied with Villo. Burt Langdon – A criminal who competed