Based on Mark Twain's "The Prince and the Pauper."

Twilight Sparkle is stressed with her new role as a princess and wishes she could go back to being a regular old unicorn.

Dawn Cracker, a unicorn living with her indebted father, wishes she had the life of a princess.

When the two meet, they discover they look a great deal alike and (of course) decide to switch places. What chaos will become of this?