Every member of a small community in the snow-capped Bükk Mountains is trying to help the doctor get to István Simon forester's house where his wife is about to give birth to their first child.

In 1905 Hungary, a young village woman has just undergone a marriage to the spoiled son of a man to whom her father is indebted, in order that the debt be cancelled, only to be spirited away by her true love, a young peasant, by whom she soon becomes pregnant. Together they attempt to find a way to buy up her father's debt and also pay for a divorce from her husband, against various odds.

Lugosi works in the locomotive factory, earning little. He does not feel at ease in the world. One reason for his discontent is that his wife - a tractor factory worker - earns more than he does, and another is that she has even had her innovation accepted, while his has not. And because trouble doesn't come alone, poor Lugosi gets involved in a sabotage case.

Prof. Laurent Akush from the Institute of Geophysics is working on a device that can be used to locate coal underground. For successful work he needs a tube XCX13, it is available in the West, but foreign firms sabotage the supply of the device. In his institute there is an enemy engaged in sabotage, but the professor does not believe in enemies. He believes that this is propaganda, science is above ideology, and that "scientists are made of a different dough." Laurent Akush receives an invitation to the international geological congress in Berlin, there he hopes to meet an old American friend, the scientist McLane. He takes with him his assistant Ferenc Ervish and a young Stakhanovite worker, Ishvan Kadosh. The professor does not yet know that in Berlin, Colonel Thompson of American intelligence is preparing a trap for him.

In May 1919 in a small rural town beside Salgótarján the local high society wants to get the power back with the leadership of dr. Máriáss, exploiting the outside attack launched against the Republic of Councils.

Buda is mastered by the Turks. Student Gábor and his companion flee a troop into the castle, just in the garden of Gül Baba. Gábor and Leila, the daughter of Gül Baba fall in love with each other. Ali pasha, who wants to marry the girl, has the two Hungarians caught in order to let them be executed.