Action Comics Vol. 2 (2011-2016) #7

Plot

Superman pursues and enters the Collector of Worlds' ship, where he finds several bottled cities, including Metropolis and another he remembers from his dreams. While those in Metropolis try to figure out what to do, Superman learns of his home planet Krypton and its city of Kandor. Told to choose between Kandor and Metropolis, Superman dons Kryptonian armor and faces his enemy.