The adventures begin when Discord invites the Mane Six for a "friendly" game of Caverns & Cutie Marks. But nothing is simple when Discord is involved, and the girls are sucked into the game's world; literally!
But that's not chaotic enough for Discord's tastes, and so three Colts (that weren't Colts to begin with) find themselves thrown into a game filled with dangerous enemies, lively villagers, and terrible villains. All in the form of pastel-colored Ponies!
With 9 Ponies in play, a mad god-like being rolling the dice, and forces at work that no-pony could expect, random encounters aren't the only place trouble can come from. Will the Mane Six and the Colt Trio be able to work together to save this strange world? Or are the real villains the ones that come from within the party?