The humanitarian aid expedition "Angeles Azules" (Blue Angels), comprising twelve Europeans and six trucks loaded with provisions to alleviate hunger in Sub-Saharan Africa, advances across the continent. As a result of the difficulties the team encounters, disorganization gradually takes over the convoy. Each of the members of the group, little by little, yield to their petty, selfish impulses: violence, power, nostalgia - The breakdown of one of the trucks forces Michele and Nadia to wait at an oasis for the arrival of spare parts. But a starving local tribe settles threateningly near them. The chief of the tribe makes a speech they don't understand, which is followed by a macabre purification ceremony.
Staubli is happy. He has just concluded a considerable deal with El Farik, one of his biggest successes as an arms dealer. To sign his final contract, Staubli takes the plane with Loussif, Serge Tournier and his wife Laura. During a stopover, a mechanical incident immobilizes the group for a few days in the Moroccan desert. Then Tom arrives, a pilot who trades with his old plane, the Sphinx. A small business that works well. But among these particular customers, Laura strangely reminds him of the one who left him and because of whom he left everything before...