Forests are filled with more than just trees. They're home to mysterious curses, medical cures, and weird and wild animals.

Molten metal, gigantic impacts, and volcanic eruptions; secrets unlocked from deep within the Earth reveal how life is able to exist on its surface.

Deadly fog, killer waves and man-eating monsters; unlocking the secrets that lurk in the depths of Earth's mighty lakes and the processes that created them.

Some are frozen white tundras, others super heated suntraps that switch from sand to grass; unlocking what makes a desert, what forces create and change them, and what strange creatures call these wastelands home.

Mysterious creatures, monster waves, and sunken treasures; exploring the depths and currents of Earth's mighty oceans, unlocking watery secrets that lie beneath the surface.

It's a cold world full of frozen mysteries and secrets; unlocking how melting ice could have catastrophic consequences, why millions of tiny creatures thrive on an Alaskan glacier, and how to make an impossible lifesaving rescue.

From hurricanes to haboobs, unlocking how winds form, the chaos they can create, and how to survive their deadly wrath.