A lively Yeti – in our town? "Do not open!" is written on the mysterious package that Nemo receives. It's clear: Nemo opens it... And then three things happen: A plush figure jumps out, a gluttonous Yeti knight named Icy-Ice-Monsta – very much alive! It's snowing outside – right in the middle of summer! And the Yeti grows. Very big. Two and a half meters tall! As the small town of Boring sinks into snow and ice, Nemo and his friends start to sweat. Because how, pray tell, do you hide a Yeti? A turbulent race against time begins.