Season 2 When aspiring duelist Yuma meets Astral, a mysterious visitor from another world, it seems like the perfect match: While Yuma requires Astral’s dueling expertise, Astral needs Yuma to gather 99 Number Cards that contain his lost memories. They would be dueling’s greatest tag team…. if they could only get along! Our two heroes better get their act together because they’re facing the world’s most skilled duelists in the World Duel Carnival – the greatest tournament in history! Yuma and Astral squeaked by the preliminaries, but they’re about to face their ultimate test in the finals where unexpected new rules – and devices – await! And if that isn't trouble enough, even greater dangers attack from all sides! What is villainous Vetrix’s connection with Yuma and Astral? What vile master plan lurks behind Dr. Faker and Mr. Heartland’s mission to gather all the Number Cards? And what does the wild card Shark have in store for our heroes? Answers are revealed as the world edges closer to the brink of chaos!
Season 3 Seven legendary Number cards are hidden throughout the cosmos, each holding a key to unlocking the ultimate power of the universe. Yuma and Astral must find them before the evil Barians do - for whoever wields this force can use it to save the galaxy… or destroy it! But as our dueling duo faces new challenges and adventures, their very friendship is put to the test! Can they overcome their differences before their differences overcome them?