Tough as Nails

Twelve new contestants arrive and their first challenge is to race to receive cargo dropped from a C-130 plane.

Crew members punch in for their first individual challenge, repairing snow fences on Mt. Baldy, the highest peak in Los Angeles.

Season 2 crew member "Freight Train" returns to lead the competitors through their individual challenge of delivering boxes.

Crew members visit the U.S. Coast Guard, where it's time to sink or swim in a search and rescue individual challenge.

Contestants go to the Irwindale Speedway in Los Angeles, where they must work together to be the fastest team to complete a race car pit stop.

The crews must install a crop field irrigation system.

Teams compete to set up a lighting grid at the iconic Los Angeles theater The Wiltern.

Teams must reseal a massive parking lot.

The teams face off in the last team challenge; the final five individual competitors battle for their chance to compete in the finale.

The final crew members compete in a series of challenges that test their life skills and physical strength.