[citation needed] The Davidson family adopts Aleasha, a black, white, and tan colored Australian shepherd puppy from a farm.

Aleasha loves her new family and really feels happy playing with their young son, Nick though he is not very thrilled about the new dog since he would rather have a little brother or sister.

One day after returning from the vet's office, Aleasha sees herself in the mirror and realises that she is not an actual human member of the family, but a puppy.

To cover up for the soon-to-be absent dog, the Davidsons begin telling people that they gave away their puppy and plan to adopt a little girl.

When Aleasha is allowed to go trick or treating on Halloween, disguised as a werewolf like Nick, she gives in to her canine side by howling in fear upon being spooked by a man pretending to be a scarecrow at one house.