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?