The domain of Tartarus is a wild and sometimes incomprehensible wasteland and its creatures are just as bizarre. A strange presence from this horrible place has manifested itself inside of the refrigerator of a certain animal expert in Ponyville. Weird creatures start flying out of it, and it is up to the resident magical genius and her incredibly shy friend to fix everything before it is too late. This is a story of a horrifying necromancer, a dog that has a tendency to burst into flames, and a demonic fridge.

Rarity brings Pinkie Pie and Spike along on a business trip/vacation to Manehatten. The city is dangerous, and the mysterious thief Black Light is on the loose. The trio are in town to attend parties and advertise some of Rarity's new work, when a master thief and cunning detective break down the door to a whole different adventure. What will become of the acrobat unicorn thief, and will he ever be caught?

An old pony wanders into Ponyville and promptly gets mugged by a pair of no good Diamond Dogs, Rainbow Dash, seeing the ensuing scuffle, which ends when the old pony incapacitates the two dogs without so much as raising a hoof, he catches Dash's attention, getting him a place to stay at Applejack's farm, Rainbow Dash and Applejack begin to train under him, with the two Diamond Dogs seeking revenge against the old pony and any who may shelter him. Where will this lead, will Dash's competitive nature and Aj's stubbornness ruin their friendship, and what will come of the Diamond Dogs?