Salt and Fire (DVD)

Two ecologists working for the UN (Veronica Ferres and Gael Garcia Bernal) are sent to Bolivia to investigate rare geological formations in the area that could potentially pose eco-related dangers. But their environmental plight turns personal when they are kidnapped by a ruthless businessman, Matt Riley (Michael Shannon), whose intentions are mysterious yet clearly nefarious. When a nearby supervolcano starts to show signs of erupting, they all must unite to escape disaster.