The Seige at the Great Palace begins with a scene with a bird flying around the planet of Terropolis. Then the Bakugan bin to fall. First it is just cards then the bakugan. The Terropolins begin to live peacefully with the bakugan


Ethan Stone appears running throught the main city into a building to the top floor to tell their Emporer something. "Emporer, the Ragnaroids are here." The Ragnaroid ships land on the planet and the enemy troops launch their bakugan into battle. The Terropolins are forced to fight back even though they have never brawled before. The Ragnaroids win as soon as they start. Ethan rushes to see what happens and when he gets back the Emporer is dead.

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