Diamond Tiara has been redeemed in the eyes of the fillies and colts of Ponyville, but there is someone else that isn't so forgiving. Krampus, the evil punisher of naughty ponies during Hearths Warming, has come to whisk Diamond Tiara away to Tartarus and only Scootaloo, Sweetie Belle, and Silver Spoon can rescue her.

A portal opens above Ponyville. Ben, a traveler from another plane, crash lands on the front steps of the Friendship Castle. Through adventures with this mysterious visitor the Mane 6 must battle to protect their home and loved ones before all Equestria falls to the darkness of the goddess of destruction. But not all is as it seems because Celestia, ruler of the land of Equestria, knows something of this wanderer and his fight against the forces of darkness.