Ninth-grader Alexandra Avilkina turned out to be a very capable editor of the school newspaper. Yegor Andreevich, a teacher of Russian language and literature, even prophesies for her a brilliant journalistic career, since, in his opinion, Sanka has no moral brakes: for the sake of sensation, Avilkina may well commit an immoral act. As if on purpose, the popularity of “Big Change” begins to fall. The newspaper urgently needs to be saved. And then in the editorial mail Avilkina finds a note that could become a real bomb.