All of the Clow Cards have been captured, and Sakura Kinomoto, the new Master of the Cards, is preparing to play the lead in the play for the town festival. However, a new evil force is causing mysterious events all over Tomoeda, including the disappearance of Sakura's cards. With Syaoran's help, Sakura must figure out the cause of these events, and save her town.

Sakura Kinomoto, a Card Captor, wins a game of chance and is awarded a trip to Hong Kong, along with her best friend Tomoyo and her rival, Syaoran Li. It turns out that the ancient rival of Clow Reed, the creator of the mysterious and powerful Clow Cards, summoned them, and she's out for revenge. A battle ensues, and secrets are revealed about Clow Reed's shady past and Sakura's connection to him.