IT'S AN IMP-LOSION OF GLOBAL PROPORTIONS! 

As Mxy and Bat-Mite flee the dreaded Doom-Mite of the fifth dimension, Batman and Superman must travel to the fifth dimension to do battle within a dimension of omnipotent mayhem! All this, plus the march of the Legion of Doom-Mites and an absolutely ADORABLE weapon of mass destruction in this startling second installment of the last World's Finest epic!