In the middle of the night, Anna hears Acorn's whinny in the Crandal paddock. There is a fire in Dr. Crandal's animal clinic. All the animals are in danger!
The Pony Pals notice that a stray cat who was staying at the clinic is missing. Anna and Acorn are determined to find the stray. Can Acorn lead the Pony Pals to the cat?
(to be added)