In the shadow of the towering Sierra Nevada, lies a dormant giant that has slumbered for millennia. But now, nature's fiery wrath awakens as the Long Valley Caldera, a sleeping volcanic colossus, stirs from its deep slumber.

​

California had experienced back-to-back catastrophic events. The ARkStorm, a thousand year flood event led to another catastrophic event, a series of earthquakes causing the rupture of the famous San Andreas fault. That earthquake has now awakened the Long Valley Caldera, the second largest Supervolcano in the United States behind Yellowstone, located beneath California's Mammoth Mountain.

After surviving being swallowed by the Earth during the earthquake swarm in Fractured, USGS geophysicist, Mac Atwood, and volcanologist, Taylor Reed returned to the ordinarily peaceful and serene environs surrounding Mammoth Mountain. Or, so they thought.