Overview
Schoolboy Petya Ivanov receives a letter from a famous scientist and 20 grains of a new high-yield variety of wheat. Petya and his schoolmates decide to create an experimental plot. Fearing that adults will take the seeds away from them, the children do everything in secret.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 38 | October 1, 1997 (80) | |
 | - | - | |
 | - | - | |
| - | - | |
| - | - | |
 | 20 | July 18, 1984 (49) | |
| 61 | March 18, 1962 (68) |