Fresh out of veterinary college in 1937, James Herriot struggles to find work in his Depression-struck home town of Glasgow. Seeking new opportunities, he pursues a position in the remote village of Darrowby working for eccentric local vet Siegfried Farnon, who is less than impressed by his early efforts. However, a difficult calving gives James a chance to prove his worth.

Tristan sets about collecting debts owed to the surgery and takes a shine to Maggie, the new barmaid at The Drovers. Siegfried hopes to bag the job of Attending Vet at Darrowby Racecourse, by buttering up the head of the race course, General Ransom. When the favourite to win on the race day is diagnosed with a inoperable condition, James has his first painful experience.

It's the Darrowby Show and James is pleased as punch that he has been given the honour of Attending Vet. But Siegfried and Tristan know the job is a poisoned chalice and reckon James won't last the day without throwing in the towel.

With Tristan's encouragement, James asks Helen if she'd like to go to the local spring dance. But village resident Gerald's arrival with his injured dog, Rock, puts a spanner in the works. Meanwhile, Tristan worries that Siegfried is in danger of losing his edge.