Julian must treat a pregnant heifer with a pelvis that may be too small to give birth, while a cat that lost a leg after being run over by a car suffers another injury in a road accident, but this time, no treatment may be possible. A pygmy goat keeps getting its head stuck in a wire fence, a dog needs an operation on its lungs, and farmers the Greens celebrate their anniversary with a trip to Whitby.

Peter treats a ewe that is struggling to give birth to twin lambs, and also performs a complicated and risky surgery on a tawny owl to remove the bird's ruptured eyeball. Julian examines a herd of cows from a breed that is on the endangered species list, a young alpaca has been unable to stand or walk since birth, and a dog lover is left distraught when one of his four-legged friends brutally attacks another.

Peter treats a lamb that was born with a life-threatening cyst full of spinal fluid on its head, which will require delicate and painstaking surgery to safely remove. Julian is called out in the middle of the night to save a cow that has experienced dangerous complications while giving birth, a pig is resistant to being castrated, and a dog swallows a bottle of e-cigarette liquid.

Peter tends to Marshmallow, a foal struggling to take the vital first feed from mum; Julian operates on new mother Bea, a labrador who has eaten a large sock.

Julian sets up a blood bank at Jackie's alpaca farm to take vital samples that could help any struggling crias born. Three years after he took off part of her jaw to tackle a cancerous lump, sheep dog Millie needs Julian's help once again.

A cow has a rare and complex problem; baby deer Berry is dehydrated, but the treatment may be more dangerous than the cure.

Peter Wright takes donkey-loving farmers and long-time friends and clients Steve and Jean Green on a special trip.

Festive edition of documentary inspired by classic Christmas song, beginning as vets Julian Norton and Peter Wright encounter 12 huskies, followed by 11 braying donkeys and so on.