Celebrate fifty blockbuster issues with this extra-sized extravaganza as we reveal the untold tale of Thomas Wayne's meeting with Jor-El and how it shaped Gotham City's future! You don't dare miss this one! The past was just prologue for this latest adventure of the World's Finest duo as an ancient Kryptonian artifact is uncovered, unleashing past and present dangers that may alter the duo's future. Not even the guest-starring Titans will be able to save them! This issue also features a variant cover by the original SUPERMAN/BATMAN art team of Ed McGuinness and Dexter Vines!