Worlds collide as Sora, Donald, and Goofy continue their quest to save the universe from darkness and reunite with their friends! Wherever the trio goes, the Heartless seem to follow, manipulated from the shadows by powerful villains. But while his enemies continue to prove no match for Sora's heart or his Keyblade, the Heartless aren't the only ones Sora has to worry about ... because before he can find his friends, one of them unexpectedly finds him! With Riku now playing for the dark side, will Sora succeed in saving him, Kairi, and Kingdom Hearts?!