Prologue: Go Back?

When Mal of Auradon and Crystal of Storybrooke mix the wrong spells together, both end up accidentally opening a portal and sending the students of Auradon to Storybrooke. With no other choice but to work together, the teens meet their prospective "parents" in the small town. Some fit in easily, but some don't. What happens when a villainous character wants to use this their way?