Grogar, the Father of Monsters, manages to escape from his prison, but instead of returning to Equestria, or any part of Equus for that matter, he finds himself in a strange new world, aboard a large boat that is in the middle of a voyage to a new land, and with a new body. However, he finds that something is preventing him from leaving this world and returning to the one he came from, forcing him to band together with a lone Handler that has no A-Lister Hunter to team up with and a lone Palico that has no partner, in order to survive in this new world and learn about it. From there he will have to learn about the dangers of the New World, adapt to the monsters that call it home, and find out why the massive beast known as Zorah Magdaros headed to the large island in the first place, along with any secrets that might be waiting for him and his new allies.

(Monster Hunter World/MLP Crossover)
(Part of the Demon War story series, though reading the other stories is not required)