Tension sparks when James buys an X-ray machine for practice, challenging Siegfried's traditional methods. Mrs. Hall learns more about Siegfried's shenanigans, and Mrs. Pumphrey seeks advice from the team when Tricki seems unusually distant.

The series features James Herriot’s adventures as a veterinarian in 1930’s Yorkshire in a glorious new adaptation in a series based on his internationally celebrated books. Nicholas Ralph makes his television debut as the iconic vet who became renowned for his inspiring humor, compassion and love of life.