A young engineer, Lucien Rombeau, is sent to the Sahara by the oil company that employs him, which wants to put an end to drilling that it considers unproductive. He ends up agreeing with the chief prospector, who refuses to stop the work and is convinced that prospecting will not be in vain.
| Directing | Michel Gast | Director |
| Writing | Michel Gast | Writer |
| Writing | Jean Lartéguy | Writer |
| Writing | Gilles Perrault | Writer |