Tough as NailsSeason 3 Episode 8: Battle Lines
Competitors are tested for their strength, endurance, agility and mental toughness in challenges that take place at real-world job sites, including Camp Pendleton Marine Corps Base, Mt. Baldy, the U.S. Coast Guard in San Pedro, and a motorsports facility. One by one, the contestants -- who include a crop duster, an ironworker, a construction foreman, a carpenter and a diesel mechanic -- 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.
- Original air date