Could it be a ghost horse? Mandy and James are sad because their friend Wilfred Bennett has to sell his riding stables. Things get even worse when Sam Western turns the land into a campsite and wants everyone to forget the stables ever existed. Now campers are telling stories of a ghostly horse and rider passing through the campsite - the vanishing into the night air! Mandy and James don't believe the spooky tales, but can they figure out what is...

When a friend goes into the hospital, Mandy and James take in his daughter Polly and her shetland pony, but the owners of Animal Ark Veterinary Clinic find they must teach her how to overcome a fear of horses.

Just after Mandy witnesses a ghostly young horse disappear in the fog, she encounters a girl who has been visited by her own deceased foal, named Curiosity, leaving Mandy to wonder about this coincidental occurrence.

When Mandy and James observe SPCA inspector Danny Davies and his beagle, Sasha, on patrol, things taken an unexpected turn when Sasha is injured.

Mandy Hope begins to have suspicions about a local breeder after her Dad diagnoses an Old English sheepdog puppy as deaf at Animal Ark and then finds another sheepdog puppy abandoned and weak.

While helping to set up a Santaland outside Walton Cottage Hospital, Mandy and James spot a stray Jack Russell terrier. They also befriend Charlie, a young patient, who desperately wants a dog for Christmas. Can they bring the two together?

Mandy and James have gone to Jersey with Mandy's mom and dad to look after a local veterinary clinic. They spot a Siamese cat made of china in the window of an antiques shop - but they soon discover that Sud Su Ming is a real cat! Mandy things the beautiful purebred could be enetered into a prestigious island cat show but how can she - and Ming - persuade her reluctant owner?