As a result of a mysterious experiment, Varvara Kononov and Alexei Danilov find themselves in 1957 in the USSR. Using his knowledge of the future, Alexey becomes an assistant to the first secretary of the Central Committee of the CPSU Khrushchev .. But the high position of the young man takes not long. His stories about the collapse of communism in the 90's bring Khrushchev to a frenzy ........ Alex is arrested......... [ At the same time, Colonel Petrenko arrives from the future, who tells Vara terrible things: in 2020, a series of epidemics and catastrophes began in Russia. Petrenko has a task: to rewrite the history . And Varya and Danilov are forced to help him.