On March 15, 1848, a young firebrand poet, Sándor Petöfi ignites the Hungarian Revolution with his passionate 'National Song', prompting the Austrians to dispatch a ruthless secret agent to assassinate him and suppress the uprising.
Village-girl (Juli Kovács) arrives in the city to work in a factory. The works manager (János Bodnár) sets his eye on her, but at first the girl refuses his advance.
March 15, 1848; the revolution breaks out in the town of Pest. Yet at café Pilvax, in among he revolutionary youth, there is the informer of the imperial court as well. Hearing the news of the attack led by Jellasics, the inhabitants of the villages pour into the national army, and Hajdú Gyurka also escapes from his landlord. Petőfi is there at the camp of the revolutionaries, raising them to enthusiasm with his poetry.