Dr. K and her team are preparing for surgery on Bob the sulcata tortoise, who was brought in with a mass on his neck, likely a puncture wound caused by humping a stack of wood. At the same time, an emergency case is rushed into the treatment room. Shelby, a 9-year-old chinchilla, is bleeding from the mouth and the cause is unknown. Dr. K rushes to solve the case before the fragile animal loses too much blood. Meanwhile, Dr. Thielen takes on a mystery case involving a therapy chicken with a lame leg. The diagnosis leaves the owner faced with a heart-wrenching decision, while Mimi the pot-bellied pig is put to the weight loss test after being put on a diet.