ASPCA Special Agents Mike Geller and Paul Lai are on their way to Coney Island. They've had a tip-off about a woman keeping dozens of cats in her small apartment. They find appalling conditions in the apartment and must compel her to clean it up. Agents Mark MacDonald and Annmarie Lucas investigate a report of several dogs left abandoned in a Brooklyn backyard. One dog has succumbed to a mysterious malady, so the officers seize the other dogs for treatment.