It's the first winter after the Monster Apocalypse. For Jack and his buddies, that means sled catapults, epic snowball battles, and one monstrous C hristmas celebration. But their winter wonderland turns dark when a villainess begins hunting them. And this villainess is different - she's a human. When the villainess steals Jack's prized monster-slaying tool, the Louisville Slicer, he vows to get it back. But it won't be easy. Jack and his friends soon discover that the Louisville Slicer is the key to a dark plan that threatens the entire world - and beyond . . .