WRITTEN BY MARK WAID; ART AND COVER BY LEINIL YU AND GERRY ALANGUILAN Faced with the knowledge of what Lex Luthor has planned for Metropolis, Clark Kent is ready to throw in the towel and head back to Smallville. But is there a greater threat from Krypton that only Superman can prevent? FC, 32 PG. (10 OF 12)