Go down, down, down into the "Ring of Fire," the region of volcanic and seismic activity that encircles the Pacific Ocean and includes the Americas, Australia, and Asia. This remarkable IMAX documentary takes you up close to nature's fury as you witness actual volcanic eruptions and earthquakes and visit the devastation left in the wake of Mt. St. Helens and the 1989 San Francisco quake. 38 min. Widescreen; Soundtracks: English DTS HD 5.1 Master Audio, French, Spanish.