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I'm Jay Slaykov and you're listening to Masterpiece Studio.

In the Yorkshire Dales, the rumbles of war still seem distant, and the loudest sound for veterinarian James Harriet are his own wedding bells.

There he is, my boy. Hello, my boy.

You're too young to be getting married, you should still be a homeward mommy.

It'd be an old man before they get way different ways up to you.

Of course, it's not a wedding without complications.

The threat of tuberculosis draws James away from the church and up to a farm to begin testing cattle for the dangerous disease.

You said you wanted to get started first thing this morning.

I'm sorry, it started on what?

Oh, damn me.

You were three shades to the wind, weren't you lad?

The testing.

The TB testing.

TB testing.

The cows, meered?

I see.

Of course.

...