S3 E1 • Frozen Titans

The unique spray ice formations at Helmcken Falls, British Columbia, are considered the hardest ice and mixed climbing spot in the world. The 140-meter cave is a terrifying complex of giant, overhung icicles and thus has become Will Gadd's obsession and the leading edge of modern ice climbing.

S3 E4 • Chris Sharma in: Into the Light

Majlis al Jinn, a huge subterranean chamber in Oman, is big enough to house the Great Pyramid of Giza. After a 170m free hanging rappel, Chris Sharma and his partner set out for a record breaking ascent from the deepest point of the cave following the enormous arch, fighting gravity, climbing upside down back into the light.