 Centuries ago, the magician Clow-Ri imprisoned hundreds of magic spirits in special cards and sealed them in a book he called THE CLOW. He then appointed Kerobearos (a small yellow bear with wings) as the book s protector. In the present day, a girl called Sekura Avalon accidentally opened THE CLOW and unleashed the cards. Now Sekura, aided by her tech-savvy friend Madison, Kerobearos and a mysterious boy called Li, must find the cards before the spirits inside them lay waste to the world.