Stuck in Canterlot castle during a holiday winter storm, the girls decide to have their own party alongside Spike and the princesses. Everything seems to go well: everyone's enjoying the food and treats, everyone's playing games and singing, and everyone is having fun in each other's company. Except for one.

Spike isn't. After yet another embarrassing mishap in front of his friends, the straw breaks the camel's back. Now, to prevent him from treading the darkest of paths, it's up to three ghosts of his past to set him straight!