Editor's note: Part two of this episode replaces previously scheduled programming.

TWELVE HARD-WORKING AMERICANS ROLL UP THEIR SLEEVES AND TAKE ON THEIR FIRST CHALLENGES, ON AN ENCORE OF THE TWO-HOUR SERIES PREMIERE OF "TOUGH AS NAILS," SUNDAY, JULY 12, HOSTED BY PHIL KEOGHAN

"Redefining Toughness" - Twelve hard-working Americans take on navigating a wheel barrow and testing their brick-laying skills to win the opportunity to choose their teams, on an encore of part one of the two-hour series premiere of TOUGH AS NAILS, Sunday, July 12 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Phil Keoghan is the host and executive producer. (Originally broadcast 7/8/20.)

"Get the Job Done" - The TOUGH AS NAILS crew takes on three challenges: they get down and dirty in their first team competition as they work to complete the missing part of a railroad track; they "punch in" for their initial individual test, and the last two standing face off in a railroad overtime challenge, on an encore of part two of the two-hour series premiere of TOUGH AS NAILS, Sunday, July 12 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Phil Keoghan is the host and executive producer. (Originally broadcast 7/8/20.)

The TOUGH AS NAILS competitors are:

Name: Linnett Key
Job: Welder
Age: 34
Hometown: Lecanto, Fla.
Instagram: @LKeyFit and @LoveLinnett

Name: Danny Moody
Job: Drywaller
Age: 33
Hometown: Spokane, Wash.
Instagram: @drmoody22

Name: Melissa Burns
Job: Farmer
Age: 27
Hometown: Milford Center, Ohio
Instagram: @farm_fit_wife

Name: Lee Marshall
Job: Roofer
Age: 61
Hometown: St. Louis, Mo.

Name: Kelly "Murph" Murphy
Job: Marine Corps Veteran
Age: 47
Hometown: Paragon, Ind.
Instagram: @kwmurph72

Name: Linda Goodridge
Job: Deputy Sheriff
Age: 29
Hometown: Marion, N.Y.

Name: Luis Yuli
Job: Scaffolder
Age: 35
Hometown: The Bronx, N.Y.
Instagram: @luispyuli

Name: Michelle S. Kiddy
Job: Gate Agent
Age: 62
Hometown: Alexandria, Ky.

Name: Callie Cattell
Job: Fisherman
Age: 28
Hometown: Bend, Ore.
Instagram: @calliecattell

Name: Young An
Job: Firefighter
Age: 36
Hometown: Alexandria, Va.
Instagram: @boomer.3000

Name: Tara Davis
Job: Ironworker
Age: 30
Hometown: Elk Plain, Wash.
Instagram: @thatonebatmom

Name: Myles V. Polk
Job: Forestry Tech
Age: 28
Hometown: Tuskegee, Ala.
Instagram: @priimal

TOUGH AS NAILS is a competition series that celebrates everyday Americans who consider the calluses on their hands a badge of honor. Competitors will be tested for their strength, endurance, agility and mental toughness in challenges that take place in the real world. One by one, they will be eliminated until the TOUGH AS NAILS winner is named, but nobody will go home. Even after they "punch out" of the individual competition, they will have the opportunity to win additional prizes in the team competitions that continue throughout the season. The series will redefine what it means to be tough, proving that it comes in all shapes and sizes.

TOUGH AS NAILS is produced by Raquel Productions Inc. in association with Tough House Productions Inc. Phil Keoghan, Louise Keoghan and Anthony Carbone are executive producers.