Recruited by the Hystorians, a secret society that dates back to Aristotle, the kids learn that history has gone disastrously off course.Now it's up to Dak, Sera, and teenage Hystorian-in-training Riq to travel back in time to fix the Great Breaks . . . and to save Dak's missing parents while they're at it. First stop: Spain, 1492, where a sailor named Christopher Columbus is about to be thrown overboard in a deadly mutiny!

    Together they discover that they need to protect Earth from the evil of Metamoor. But things go seriously wrong for the girls at the school's Halloween dance when Metamoor henchmen crash the party and attempt to capture them. The girls have to command their newly discovered powers in their first battle against evil.