During the WWII, veteran Panas Petrovich Baida lost his son. Many years passed, and Panas Petrovich came to terms with his loss, hiding his grief deep in his heart. But one day, he heard news about children who had been saved by soldiers from the military. All the boys who did not remember their names were named Ivan Immortal. They are still alive today, but fate has scattered them to different corners of the country. Panas Petrovich sets out to visit each of them, hoping to recognize his son among them.
| Actor | Role |
|---|---|
 Nikolay KryuchkovPanas Baida | Panas Baida |
 Les SerdyukIvan Bessmertnyi (Father of a big family) | Ivan Bessmertnyi (Father of a big family) |
 Aleksandr YanvaryovIvan Bessmetrnyi (Cybernetic) | Ivan Bessmetrnyi (Cybernetic) |
 Valeriy NosikIvan Bessmertnyi (Bus driver) | Ivan Bessmertnyi (Bus driver) |
 Ioseb LaghidzeIvan Bessmertnyi (Submarine officer) | Ivan Bessmertnyi (Submarine officer) |
 Leonid BakshtayevNot listed | Not listed |
 Oleksandr MovchanNot listed | Not listed |
 Tamara SovchiNot listed | Not listed |
 Kostiantyn StepankovNot listed | Not listed |
 Vladimir VolkovNot listed | Not listed |
 Olev EskolaPavel Maksimovich | Pavel Maksimovich |
 Liliya GritsenkoNot listed | Not listed |
 Alexandr PlotnikovNot listed | Not listed |
 Eve KiviIrma, cybernetic's wife | Irma, cybernetic's wife |
 Aino PihlamagiIrma's secretary | Irma's secretary |
 Nina PopovaAnna | Anna |