From the team behind BATMAN- THE LONG HALLOWEEN, SUPERMAN- FOR ALL SEASONS, Jeph Loeb and Tim Sale, comes a new edition of their first DC collaboration, CHALLENGERS OF THE UNKNOWN BY JEPH LOEB & TIM SALE! Four men who barely survive the crash of a small aircraft now consider themselves to be living on borrowed time! Together, Kyle "Ace" Morgan, Matthew "Red" Ryan, Leslie "Rocky" Davis and Walter "Prof" Haley dedicate themselves to a life of harrowing adventures, all in the name of good! But how will these rookie adventurers navigate the rough terrain of the DC Universe After years out of print, this original 8-issue miniseries is collected in a thrilling new hardcover!