Three of the strongest Alone participants take on a bushcraft challenge devised by one of their own-- build an Earth Shelter in three days using just a few surprise tools.

Three former Alone participants take on a difficult challenge they've never tackled before - build a Bushcraft Bridge in three days using just a few simple tools.

Building a wilderness survival shelter is far from simple, but it's even tougher to make it bone-dry when it rains and smoke-free when a fire is lit.

This week's challengers tackle a complicated build--crafting a working oven from all natural materials, like sand, wood and water.

Expert bushcrafters and former Alone participants tackle the toughest challenge yet--building a working watercraft from all natural materials.

A 12-foot-high elevated shelter that's safe from predators, in just three days, with only three tools? That's the tall challenge in store for former Alone participants.

Past Alone participants Britt Ahart (Seasons 3 & 5), Jordan Jonas (Season 6 Winner) and Lucas Miller (Season 1) tackle one of their biggest challenges yet.

Three of Alone's standout fishermen are challenged by Jordan Jonas to make a fishing kit, catch and smoke a fish with only four tools in three days.

Three expert builders are challenged to build a raft with a shelter. With only three tools will they find the raw materials to float or will they come up short and sink?

Given only two tools, this week's challengers are tasked with one of their most unique builds yet, a nature-powered rotisserie.

Three Alone veterans are challenged by Joel van der Loon (Season 7) to create two projectiles capable of taking down large game.

What would you do if you were stranded in the wilderness and had to survive with only what was in your pockets?