The children are planning to stage Nikolai Gogol's play The Government Inspector and listen to the reading by teacher Inna Andreevna.

The chairman of the council of the squad Anton receives from his friend a letter with a warning that a famous hooligan named "Goose" is about to come to the camp.

Behind him, three boys march on the advice of the squad - Artem (head of the sports section), Alik (head of the chess section) and Lyosha (responsible for the camp wall newspaper ), and two girls - Olya Dobkina and Olya Bobkina (an allusion to Bobchinsky and Dobchinsky from Gogol's comedy) - eavesdrop at the door of the room where the council passes.

Nevertheless, Anton proposes to exert every effort to re-educate the malicious hooligan, and his arrival is kept a secret for as long as possible so that there will be no panic in the camp.

Petya and Vasya at first do not understand why Anton and the others are so in a hurry to help them, but figuring out what's wrong Vasechkin persuades the friend to exploit the image of the hooligans.

Anton decides that the energy of Vasechkin-hooligan needs to be redirected to the right track, and the pair begins to be persecuted by the heads of various sections and circles.

The letter is picked up by Olya Bobkina, who at that moment was hurrying to the meeting of the council of the squadron, where Anton and the others summed up the first results of their attempts to re-educate the "hooligan".

Realizing that they have been wrong all this time, Dasha and Anka are reproaching themselves for not believing Vasechkin, and the other guys are blaming Dobkina and Bobkina for what happened.

In the midst of discussions, local sports judge Filipp rushes into the room, informing him that the real "Goose" has arrived at the camp.

[3] At some point, Inna Andreyevna starts to see Vasechkin in the image of the real Don Quixote, and as a result, being impressed, the teacher "knights" the boy.

They sit down on the tandem and go "to perform feats in honor of Dulcinea of Tobos" - Masha Startseva (they leave a note for her goodbye).

Petrov mourns his best friend and recognizes him as a real "knight", after which he mentally writes a letter to Masha, but unexpectedly finds Vasechkin in a well, unharmed.

Petrov and Vasechkin begin to behave as investigators, questioning her, if anyone has offended her, and as a result get acquainted with the grandmother of the girl, a lonely woman who immediately gives the work to the children.

[4] According to unconfirmed reports, Alennikov had to finish these episodes, because the art council of Goskino rejected the whole first part, considering it an indigestible satire, and therefore he decided to make more references to the original play.