Sonic X - Season 3 DVD due out this December

Six months after returning from the parallel world, Sonic faces off against a mysterious metal warrior, eager to steal the Chaos Emeralds from him. Even in his golden Super form, Sonic proves no match, and has to use Chaos Control to send the Chaos Emeralds away. And that's only the start of his troubles!

More machines show up, making off with the "planet egg" from Sonic's world, the source of all its life energies. Without the planet egg, Sonic's home will perish, and there's no way he'll let that happen! Taking to space aboard Tails' newest invention, the gang heads out to fight this steely foe. But their new friend from another world, Cosmo, is worried. Even if Sonic is the last hope to defeat the Metarex, can he really do it?