After getting stranded on Earth, Sonic and his friends team up with 12-year-old Chris Thorndyke to collect all the Chaos Emeralds and defeat the evil Dr. Eggman.
When aspiring duelist Yuma meets Astral, a mysterious visitor from another universe, it seems like destiny. Yuma needs Astral to teach him how to duel, and Astral needs Yuma to help him regain his memories!
Earth kids enter a conflict between two factions of Transformers.
