THE SKY IS NO LONGER THE LIMIT! A rash of burglaries at the high-rise apartment towers of Little Rodentia bring Officers Hopps and Wilde to the highest levels of Zootopian society - literally! The top suspects are a pair of daredevil performers called the Flying Squirrels, and the ZPD partners will have to catch them before they can bring them in for questioning - something easier said than done when half of the investigative team has a petrifying fear of heights! Tightrope walkers JEFF PARKER and ALESSANDRO RANALDI debut their high wire act in Zootopia #4 - balanced by covers from RANALDI, TRISH FORSTNER, CRAIG ROUSSEAU, and more!