The film consists of three independent parts: "Workmate", "Déjà vu" and "Operation Y". The plot follows the adventures of Shurik, the naive and nerdy Soviet student who often gets into ludicrous situations but always finds a way out very neatly.

Kindergarten teacher Evgeniy Ivanovich Troshkin is reluctantly sent undercover to take the place of an imprisoned thief who stole Alexander the Great's helmet. Evgeniy uses his striking resemblance to the thief to infiltrate his gang and learn the location of the stolen artifact. He finds the gangsters are unexpectedly similar to his students- they also need love and care.

Shurik, a kind but naïve ethnography student, falls in love with the intelligent, athletic and beautiful All-Union Leninist Young Communist League member Nina. He has a rival in the wealthy comrade Saakhov, who concocts a kidnapping scheme to force Nina to marry him.

Four evil wizards succeeded to become young by using a time stolen from lazy kids. Now these kids who became seniors must act fast if they want to return to their real age.

Elk, who ran through the forest during a thunderstorm, was crushed by a fallen tree. A brazen and treacherous magpie told the wolves about it all through the forest. Good forest animals decided to help to free the elk. The first was a hedgehog, then a hare and his mom, a family of squirrels, a mouse, a frog. Decisive in saving the elk from the wolves was the contribution of the smallest character - an ant.

Two pairs of partridges, Brovkins and Podkovkins, hatch by twelve chicks. Podkovkins get acquainted with the lark, and both the Brovkins family are killed by a falcon. Podkovkin's wife, the Orange Neck, decides to adopt chicks as their own. In the autumn, she brings twenty-four chicks to a meeting of partridges, and she is chosen as the main chicken.

About the miracles that happen on the eve of the new year.

New Year's TV show with the participation of popular Soviet entertainers.

A former aristocrat Ippolit Vorobyaninov leads a miserable life in Soviet Russia. His mother-in-law reveals a secret to him - she hid family diamonds in one of the twelve chairs they once had. Vorobyaninov in cooperation with a young con artist Ostap Bender start a long search for the diamonds.

Tonya, a winner of a regional competition, is admitted to the entrance exams to the capital's Song and Dance Ensemble. The young polar pilot Ladeikin helps the girl to get from the Far North to Moscow and become a soloist of the ensemble.