Fearing the worst, the geologist Dr Amy Barnes warns the citizens of downtown Los Angeles of an impending disaster after a tremendous earthquake takes them by surprise. With clear signs of an underground volcanic formation beneath the La Brea Tar Pits, the chief of the city's Office of Emergency Management department, Mike Roark, begins an investigation against the clock, when molten magma erupts, obliterating everything in its path. Can two mere mortals stand up against nature's wrath?—Nick Riganas