

Jancsi is part of a closely knit gang of young engineers. They see the older engineers as mediocre, and have grand ideas about developing new inventions together. With changing living conditions the five friends start to grow apart. At a party Jancsi suddenly meets Éva Halk. They fall in love, and find common memories in the engagement in The Pioneer Railway at the age of 12.
Tamás Eröss
Matyi

László Murányi
Gergely

István Dékány
Füsi

Miklós Gábor
Flesch fõmérnök

Imre Sinkovits
Harrer

János Rajz
Zsoldos úr

István Bujtor
Ági elsõ szerelme

Dorottya Géczy
Nõ a parton

Fredi Haber
Zongorista