In the early 1970s in Morocco, Driss was assigned to Khouribga to reinforce the police force. In this city, his mission will become arresting activists. At the same time, he will meet Cheikh Errouhani and his companion Chikha Ezzouhra who will introduce him to the musical art of El Aita, the importance of wisdom and fidelity.

During the Algerian war, the road to Beni Boussaid on the Morocco-Algeria border is obstructed by the Morice line, a 430-mile long belt that is electrified and heavily mined. Moussa, a Moroccan friend of the revolution, helps refugees across the mountains. However, he must go through Beni Boussaid when he finds out that the path he usually takes is no longer safe. Hans, a Communist militant of the GDR, loses a leg on the way, while trying to remove a mine from a passageway. Normally, the wounded and sick are put to rest, but Hans is not a Muslim and cannot be a martyr.