When cars start to explode, which can lead to a serious oil crisis, Tintin and his friends travel to the Middle East to get to the bottom of the problem.
Tintin and his friends travel to Khemed, a Middle East nation, to help its ruler, Emir Mohammed ben Kalish Ezab, who gets into trouble when Bab El Ehr, an arms smuggler and terrorist, rises and takes over.
Tintin and his friends investigate when something ominous haunts seven archaeologists, just after their return from an ethnographic expedition to the Andes, where they have dug up the tomb of Inca Rascar Capac.