Return of the Skull Spiders is a new movie.


Arcee and Bumblebee, desperate to know where the Skull Spiders came from, take Starlight, Rainbow Dash and Rarity to the Everfree Forest where they find out that the Skull Spiders made their home in the abandoned Castle of Two Sisters. However, this gets them caught and it's up to the other Autobots and ponies to save them before it's too late.