Competitors cut, grind and torch 500 pounds of scrap metal; the first to finish the job earn the privilege of choosing their teammates.

Competitors cut, grind and torch 500 pounds of scrap metal; the first to finish the job earn the privilege of choosing their teammates.

In the individual challenge, crew members are tasked with designing and welding a structure that can withstand the crushing force of 1 ton of weight.

Teams are tasked with completing a muddy motocross track to the exact standards of professional riders.

Season 3 winner Lia Mort returns to guide the crews through a series of challenges at a local apple orchard; teams race to gather as many bushels of apples as quickly as possible.

Working-class Americans are tested for their strength, endurance, agility and mental toughness in challenges that take place in the real world.

The crews take a trip to the quarry where the contestants face the most explosive individual challenge ever when they must install 20 detonators.

Crew members compete in a series of challenges that give back to the local community

Dirty Hands and Savage Crew compete in the final team competition when they battle it out in a series of head-to-head matches inspired by the trades.

The final three compete in the most challenging gauntlet yet for the title of TOUGH AS NAILS champion and the coveted winner's belt.