Po ponesrečeni reševalni akciji mora policijski pes Max združiti moči z FBI agentom Frankom na posebni misiji. Sledi ju vodijo v Las Vegas na prestižno pasjo razstavo, kjer se pod krinko udeležita tekmovanja, da bi izsledila nepridiprave. S pomočjo novih prijateljev bosta Max in Frank skušala preprečiti novo ugrabitev ter rešiti živali iz krempljev pohlepnih in neusmiljenih tihotapcev.
In a world where humans and anthropomorphic animals, e.g. talking dogs co-exist, a macho but lonely Rottweiler police dog named Max is ordered to go undercover as a primped show dog in a prestigious dog show with his human partner Frank (Will Arnett) to stop an animal-smuggling scheme that is using the dog show as a front. When Max finds out the criminals are planning to sell Ling-Li, a baby giant panda, at the upcoming Canini Invitational dog show in Las Vegas, he's forced to go undercover as an entrant accompanied by Frank posing as his trainer..