Season 3, Episode 13
February 11, 2017
The guys visit Jarbridge, Nev., and then explore the Jarbridge Wilderness, where they climb Matterhorn Peak.
Season 3, Episode 12
February 4, 2017
The guys visit California's Lassen Volcanic National Park, where they go geocaching, explore the land's geothermal features and climb Lassen Peak.
Season 3, Episode 11
January 28, 2017
The guys trek to a hidden waterfall, explore an old lava tube and climb Mount St. Helens.
Season 3, Episode 10
January 21, 2017
The guys head way up north to visit the Gates of the Arctic National Park and Preserve in Alaska.
Season 3, Episode 9
January 14, 2017
The guys head to Oregon's Deschutes National Forest, where they assist in protecting an endangered species. Later, they mountain bike down a volcano and ride ATVs on old lava fields.
Season 3, Episode 8
November 19, 2016
The guys head deep underground into the caves of New Mexico's Carlsbad Caverns National Park.
Season 3, Episode 7
November 12, 2016
Jack and Colton explore Alaska's Wrangell-St. Elias National Park and Preserve, the United States' biggest national park, where they trek through bear country and reach an unnamed remote peak.
Season 3, Episode 6
November 5, 2016
The guys explore all aspects of glaciers as they hike and crawl on them, as well as crawl under them.
Season 3, Episode 5
October 29, 2016
The guys bike through Alaska's Denali National Park and Preserve at midnight. Later, they pan for gold and explore the wilderness.
Season 3, Episode 4
October 22, 2016
A trip to Theodore Roosevelt National Park in North Dakota includes glimpses of bison, prairie dogs and petrified trees.
Season 3, Episode 3
October 15, 2016
Jack and Colton tour a quarry of dinosaur bones at Dinosaur National Monument in the Southwest; later, they embark on a white-water trip down the Green River.
Season 3, Episode 2
October 8, 2016
The guys head to Colorado to enter one of the nation's deepest canyons, and then they try fly-fishing in the Gunnison River.
Season 3, Episode 1
October 1, 2016
The guys head to California's Channel Islands National Park in the third-season opener. While there, they embark on a scuba trip in a kelp forest, kayak through sea caves and observe seals and sea lions.
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