Siegfried hosts a Christmas eve party, with an even bigger event to follow the next day. Helen accompanies James on an emergency house call.

James is put to the test with an ailing racehorse. Tristan faces a familiar temptation. Siegfried angles for a prestigious client.

A missing ring is just one snag as James and Helen’s wedding date approaches. For one thing, a farmer’s cow may have TB.

As war comes in September 1939, everyone faces decisions small and large. Romance beckons for Tristan and Mrs. Hall. TB plagues Helen’s farm.

Mrs. Hall conquers demons from her past. While she is away, Tristan discovers the challenge of housekeeping. Meanwhile, Helen is at loose ends.

TB testing mistakenly puts a prize cow in danger. Helen struggles with her lifelong vocation. Mrs. Hall and Tristan have brushes with love.

James and Helen enter married life, while James settles in uneasily as Siegfried’s partner at the clinic. Tristan too must make new adjustments.