Ozzy and Merlin, two penguins at the Minnesota Zoo, have been kidnapped! All eyes are meant to be on the precious, pregnant Bengal tiger, but it's impossible to overshadow kidnapped penguins. Attendance is already low, and if the zoo is going to make it to the end of summer, the penguins must be found before the new investors arrive. To make matters worse, dolphin ethologist Dr. Loren has gotten himself roped into a bleak misunderstanding with some unsavory types. Now his career and the entire zoo's safety are at risk. All hopes rest with a sarcastic clinician, an over-eager zoologist, and a giant from the gift shop.