Outdoor Channel

Bear takes one of the best athletes of all time, Roger Federer, on a daring adventure through the Swiss Alps as they attempt to navigate the tough terrain. They descend a frozen waterfall and use tennis rackets as snowshoes.

Daniel navigates the rugged terrain of mountain stream beds to fish wild brook trout and forage milkweed flowers for a camp meal hard won from the wild.

Far from the urban jungle, Daniel teams up with chef Alan Bergo to hunt the original poultry — pigeons, and also forages for mushrooms and greens from the Wisconsin landscape.

Bear and Joseph Gordon-Levitt navigate Kenya's unyielding terrain; Joseph and Bear navigate a perilous rappel, milk a camel for hydration, ascend a massive rock dome and battle a crocodile for dinner; Joseph talks about his family and rise to fame.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

Zac and Darin test their cooking skills in Melbourne before heading to the Torres Strait Islands to understand the impact of rising sea levels.

Lena Headey and Bear journey through Spain's Iberian Peninsula; they rappel from a towering ridge, dine on bone marrow from a goat carcass and cross a lake using a makeshift raft during an unexpected storm; Lena details her life and rise to stardom.

Sunrise gives life to the valley and animals are on the move.

Miles upon miles remain in the trip, but should the brothers leave animals to find animals?