Eight months after one night of chaos, Velma decides it's time for a reunion. Joe's game... he thinks. But going on vacation with Mystery Inc is always tempting fate, no matter how many blue puppies are along for the ride.

A mysterious blizzard sends two nighttime excursions right off the rails. Velma never knew her comfort zone could be shattered so easily; Joe always knew his was pretty shaky. Too bad they have nothing in common... except for dogs and clues.