The princesses got captured/Stealing the Alicorn Magic

Here is how Twilight Sparkle and the princesses got captured in The Overlord's Revenge.

At last, everyone and everypony got outside of Seaquestria and make ready for battle.

SpongeBob SquarePants: So, Queen Novo. What made you change your mind?

Queen Novo: Seeing the way you know a good friend, I guess Skystar was right to trust y'all. We've been into hiding in Seaquestria only to stay safe, we've forgotten what it's like being hippogriffs again.

So, the groupe make ready to save Equestria from the Storm King.

SpongeBob SquarePants: I can't wait to show the Overlord and the Storm King who not to mess with!

Po: Yeah, it's gonna be an awesome team effort.

Lloyd Garmadon: It sure would, Po.

Laval: Okay, Stygian. You ready?

Stygian: Yes, Laval, I'm ready to do what I must to save Equestria.

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The Overlord: Ooh, fascinating.

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The Overlord: What can ?????