Overview: Dr. Pol and his son set out to solve a mystery — 10 Angus steers have suddenly gone lame and are struggling to stand. Back at the clinic, a recent widow is willing to pay whatever it costs to save her late husband's dog after the pet ingested a rock. The summer heat isn't the only thing causing Dr. Pol to sweat; he's preparing for a family reunion. Extra company makes the clinic feel jam-packed, but a few more hands provides needed relief.