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

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

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.

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.

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

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

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

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

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

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

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.

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.

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

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

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.

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.