Magic's gone wild in Maretime Bay, and Sheriff Hitch is determined to rein it in - unaware that an evil pony is standing by to steal it all for herself.
Sunny and Hitch learn what it's like to trot in each others' horseshoes. Opaline sends a spy to the Crystal Brighthouse, where animals are running amok.
Izzy invites newcomer Misty to a sleepover with sing-alongs, hoof readings, ponycorn and more. But Zipp has a funny feeling about the gang's new friend.
With different holiday traditions across three pony lands, the Mane 5 race against time to celebrate everyone's special customs and make it home in time for the Wishing Star.