While pursing Michael Morningstar, Ben 10 and his partner Rook are sucked into the land of Equestria. With Ben and his partner finding refuge with the mane six and the princesses, an old enemy of Equestria require Morningstar's help to take over the land. Can both Ben, his partner and the mane six stop the combined power of King Sombra and Michael Morningstar?

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