Twilight and her friends soon find themselves in a dark forest after being sucked into a portal. They soon find that this is no ordinary forest- it's home to many fearsome cats. The newcomers must learn the ways of the Clans, learn to respect the warrior code and obey the will of StarClan.

Some of the ponies of Equestria end up in the warrior cats forest as cats. They must now learn from Starclan the ways of the warrior cats and form their own clan.