From Nintendo: Long ago, a valiant hero defeated an evil wind demon known as Vaati and imprisoned him with a powerful magical seal. Over time, the magical seal weakened – now, Vaati has escaped and abducted Princess Zelda and the six Shrine Maidens. To thwart Vaati's nefarious forces, legendary hero Link turns to the mystical power of the Four Sword to split himself into four colored copies of himself.