Dr. Williams finds that elderly cat Chloe may have hypertrophic cardiomyopathy and Dr. James suspects that internal bleeding from a knitting needle injury may be causing Alien the cat's motor function issue.

Dr. Boyd treats a cancerous tumor on Dudley the miniature poodle's jaw, Dr. Martin tests Kaileigh the dog's spleen while looking for the cause of nausea and restlessness and doctors seek the cause of Loki the kitten's heart murmur.

Dr. Boyd removes bone fragments from chocolate lab King's elbow after a slip and fall on ice and Dr. Bryer runs tests to help Rocky the dog overcome a severe skin infection due to unchecked demodex mites.