Dr. Ross acquires a mobile medical unit for community outreach and Dr. Blue's brother gives it the works; Dr. Ross helps an abscessed iguana; Dr. Lavigne gives a paraplegic dachshund new wheels.

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.