When the towering terror of Toyman once again terrorizes the streets of Metropolis, Superman and Krypto are on hand to save the day — but in this new world of Kryptonite, even the murdering machinations of Toyman are supercharged with Superman's Achilles' heel! It's a twisted turn of events as the Man of Steel uncovers a game-changing new use for this deadly substance, and it has the capacity to... save the world? Plus: Jimmy Olsen moves to Gotham (careful, Jimmy), Tee-Nah of Gorilla City tries to fix Steve Lombard's laptop (careful, Tee-Nah), and Intergang floods the streets — all in the latest installment of the emerald epic you'll have to read to believe!