The agents of the Animal Precinct are banding together to combat the city's underground dog fighting rings. These dogs are trained to fight one another, and often the loser dies. Special Agents Paul Romano and Mike Geller discover an abandoned house where many dogs are living, waiting for the next sparring match that may cost them their lives. Meanwhile, Special Agent Tina Salaks has received a complaint about a house in Brooklyn, which is reportedly overflowing with animals. She arrives on the scene to make sure all the animals are being properly cared for.