A young lamb that is rescued by a farmer and raised with the family's sheepdog grows up thinking of himself as a dog, and his ability to herd sheep proves very valuable during a severe snowstorm.

Mist is one of three pups born at Borough Farm. From the moment that she opens her eyes, her dream is to become a real sheepdog. But things are not as easy as she might have hoped. Training with the boss is confusing, and then there's a bunch of gruff and grumpy rams to deal with, and an auntie who may not always have her best interests at heart. Mist will need to learn her craft and prove herself worthy of a place on the team sheepdogs at the farm....

Mist, a sheepdog on an English farm, learns the challenges of her job as she grows up.

After guardian dog Gus is injured defending his flock of sheep, he is sent to recuperate and heal with a young boy, Diego, whom Gus finds he can help by learning how to work as an emotional support animal.