An old friend of Peter's heads to the practice with a sheep who birthed a lamb last night, but is struggling with her second. But neither vet nor farmer are optimistic about the unborn lamb's chances.

David rushes into the hospital with a terrier he knows well. His own rescue dog's best friend has ripped her ear on some barbed wire, so feels added pressure as he performs surgery.

Matt and a Herriot-loving American vet student operate on a cow with a twisted stomach. And, in Julian's words, it's "eyeball to eyeball, pig against vet" as he tries to remove a boar called Prince's tusks. But arguably he faces a bigger personal challenge with his latest dabble at DIY - trying to fix the door on the practice's new fridge.