Kelly "Murph" Murphy

Inspired by executive producer and host Phil Keoghan's working-class family, "Tough as Nails" is about competitors who consider the calluses on their hands a badge of honor. They are tested for their strength, endurance, agility and mental toughness in challenges that take place in the real world. One by one, they are eliminated until the winner is named. The series proves that toughness comes in all shapes and sizes, and it celebrates Americans who don't think twice about working long hard hours and getting their hands dirty to keep their country running.

Inspired by executive producer and host Phil Keoghan's working-class family, "Tough as Nails" is about competitors who consider the calluses on their hands a badge of honor. They are tested for their strength, endurance, agility and mental toughness in challenges that take place in the real world. One by one, they are eliminated until the winner is named. The series proves that toughness comes in all shapes and sizes, and it celebrates Americans who don't think twice about working long hard hours and getting their hands dirty to keep their country running.

Tensions run high during the team challenge when one crew has issues with communication while building a large fence on a farm.

It's no day at the beach for teams Savage Crew and Dirty Hands as they compete to fill and seal giant bags of sand.

Teams are challenged mentally and physically when tasked with pushing 24 heavy barrels uphill and arranging them in a specific order at an oil field, and one crew member must conquer a fear of heights to climb a telephone pole.