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.