Historic flooding in Houston forces the clinic to provide shelter for displaced animals, including a puppy that got sick from contaminated water. Also: A tiger is found wandering in a neighborhood.

Dr. Ross performs surgery on a second-chance pup; Dr. Lavigne checks up on a prickly pet; Dr. Blue treats an injured owl, then joins Dr. Ross in checking on a cute litter of sick, tiny piglets.

Dr. Lavigne attacks an older dog's tumors; Dr. Ross tries to save a rabbit's foot mauled by a dog; Dr. Blue takes on a mission to castrate a violent donkey.