In central Libya, the endless flat desert of the Sahara gives way to something unexpected: a jet-black ocean of frozen rock. Covering more than 40,000 square kilometers, Al Haruj is one of the largest volcanic fields in Africa, shaped over millions of years by repeated eruptions. Hundreds of extinct cinder cones and ancient fissure vents rise from its sun-baked plateau, where dark basalt flows meet the shifting sands. In this documentary, we explore the volcanic history of this remote landscape and how vast lava flows reshaped the Sahara, leaving behind one of North Africa's most desolate and striking geological monuments....