It’s not all about solving detective riddles for Dima and Alyoshka, brothers-detectives; sometimes they need to rest. For example, go see exotic animals. The inhabitants of the zoo, needless to say, are beautiful, but for some reason they are so sad... But what is this? Sitting in a cage... is the parrot Proshkin, who recently disappeared from Alyosha’s classmate. “This is our parrot!” – that’s what the brothers said to the respectable uncle. And he suggested to the guys... to buy a bird. It seems that all the animals in this exotic zoo were stolen and then returned to their owners for a reward. But how to bring insidious criminals to clean water? The proven method of “fishing with live bait” should not fail, and then a fighting chicken disguised as a parrot comes into play...