The Everfree Forest is full of dinosaurs, and are now roaming free. And now Twilight and her friends are running through the forest, separated, lost and afraid. This ain’t gonna be cleared up in a half-hour.

A young closet brony and dinosaur enthusiast, Jack Patrick, finds a mysterious book and is visited by the Mane 6 then later ends up on an epic adventure in a magical land of Equestria then ends up in a dinosaur world deep within the Everfree Forest.

Twilight thought that something that's lurking under her bed was just a figment of her imagination even as a filly, but her childhood nightmare turns out to be real.

An ancient malevolent race of aliens attack Earth and Equis, and threaten to bring the human and pony race to extinction, but a young paleontologist, the Mane 6 and five other innocent teenagers uses dinosaur morphing powers to stop the invasion.