It’s Christmas Eve and zookeeper Bob McGrew is rushed off his feet. There’s so much to do, and to make matters worse all the poop has turned to ice in the freezing weather! But when Santa makes a surprise appearance at the zoo with a poorly reindeer in tow, it seems that Christmas really is in peril . . . Can plucky Rhino save the day? And will Hector Gloop ever catch a flying festive poo?