An arctic fox named Dinah comes in acting lethargic and won't eat or drink. Dr. T is concerned she may have gotten into something toxic, but she'll need to do an exam and run tests to know for sure. And while Lola, a fourteen-year-old cockatiel is in for a routine checkup, Dr. K discovers her sinuses are very inflamed. Dr. K must work carefully as a tiny bird doesn't have much blood to spare.