H'El has been making life hell for Kon-L and Kal-El in the midst of the big Superboy/Supergirl/Superman crossover "H'El On Earth." He's trying to resurrect Krypton and he's convinced Supergirl to help him, but the price they'll pay for that is too high.
Unfortunately, Superman and Superboy are stuck in "Dali World" and the Justice League can't figure out how to save them. Yikes!
Check out this preview of Superboy Annual #1, from writer Tom DeFalco and featuring art from Yvel Guichet, Tom Derenick, Julius Gopez, Iban Coello, and Jonas Trindade.