A macho Rottweiler K-9 police dog named Max attempts to rescue Ling-Li, a baby giant panda, from being sold by an animal smuggling ring but inadvertently foils an FBI sting operation involving Frank, who blames Max for letting the criminals escape. The two enemies must now work together and pose as a show dog and his trainer at the Canini Invitational dog show in Las Vegas to stop the animal smuggling ring.