Remember the '90s? Well...the town of Demise, North Dakota doesn't, and they're living in the year 1997. That's because an alien worm hitched a ride on a comet, crash landed in the town's trailer park, and is now infecting animals with a memory-loss-inducing bite - and right before Christmas! Now it's up to nineteen-year-old Realene and her best friend Nate to stop the spread and defeat the worms before the entire town loses its mind. The only things standing in the way are their troubled pasts, a doomsday cult, and an army of infected prairie dogs.