Countdown #48 was published by DC Comics on May 1, 2007, as part of a series that began in 2007. Adam Beechen and Dan Jurgens write, and art comes from Alvaro Lopez, Andy Kubert and David Baron. This 36-page issue features Superman, Lois Lane, Green Arrow, Jimmy Olsen and Martian Manhunter, among 23 characters cataloged on VerseDB.