In the second half of the 20th century, a class of students prepare for the 40th anniversary of the Pioneer Organization in the old palace of Shah. Events unfold when the famous magician Io-Kio presents the magic gown that will throw a group of students into the future.

A musical fairy tale about a lion who got bored living in the zoo and goes wandering around the city of Baku, where he met and became friends with a boy Rustam.

The film is dedicated to the outstanding artist, People's Artist of the Azerbaijani Republic Nasiba Zeynalova, and her rich creative path.