Everyone in Sawrey likes Ben Hornby. So when Beatrix finds the shepherd dead in the meadow and suspects foul play, she wonders who would have done such a thing. A trio of village cats has an idea: When Ben breathed his last, his sheep must have seen his killer before scattering. So they set out to find the far-flung flock. Although she's distracted by duties at the farm and the sad plight of a young girl, Beatrix must get to the bottom of this. As the stories intertwine, Beatrix and the creatures realize that, to solve this case, all of Sawrey, both the two and four-legged inhabitants, must work together...