Luisa Lopez can't wait for her next mission with the Magical Protection Agency!

But her impatience leads to a hungry troll escaping into the human world. Can Luisa and her cousin Leo find a way to get the troll back to Moonstone?

A long time ago, Luisa Lopez's great-great grandmother Rosa began the Magical Protection Agency, or MPA for short. It's a secret society that helps all the magical creatures of Moonstone. Luisa and her cousin Leo are the MPA's youngest protectors. When their magic keys glow, it's time for another mission!