Geologist Wentao Li swore never to return to Tianhuo Island after a volcanic eruption claimed his wife’s life. Two decades later, his daughter Meng continues his work, creating a groundbreaking eruption forecasting system to save lives. Ignoring Meng’s warnings, businessman Jack Harris transforms the island into a theme park. When the volcano erupts again, Wentao must race against time to rescue Meng and the island’s visitors from impending disaster.