Born of fire: Learn about the molten magma that drives the conveyor belt of plate tectonics. Driven by this dynamo, the ocean floor rips apart, continents collide, mountains rise, volcanoes erupt, earthquakes shake and tsunamis inundate. The story of lava is a whirlwind trip from earth's beginnings to its present state -- and affords us a glimpse into a possible future where Africa splits apart, the Atlantic grows vast and the Pacific shrinks, California breaks off from America to become a new island -- and a super-volcano changes life as we know it forever.

Ocean realm: Beautiful, bewildering and largely unexplored, our oceans dominate our planet. How did they form? Why haven't they evaporated away? We take an HD journey through time ... watch as our world freezes solid ... long ago ... and peek at the ocean's possible future. We journey from the mind-bending beauty of coral reef shallows to the deepest depths of Mariana Trench, while glimpsing everything in between.

Destructive forces: When it comes to natural wonders, few things can rival what water, ice and wind have carved into the earth -- from Niagara Falls to the Grand Canyon, and from vast deserts with singing sand dunes to the eerie beauty of deep cave systems. We head to the places where powerful sculpting forces have created some of the most stunning and unique landscapes imaginable.