One summer day, playing cards rain down on Dan and his pals, who fashion them into a war game. But this is no mere game: It's a portal to the planet Vestroia, and the cards unleash warriors battling, through the kids, over the fate of the universe. In these episodes of the anime adventure series, evil Masquerade wants to send peace-minded Drago packing to the Doom Dimension, while their human counterparts discover the complexity of friendship.