Michael, a firefighter and carpenter, and Holly, a kindergarten teacher, from Knoxville, Tenn., look to take aim at the wall.

Brothers Hecthan and Hector reside in Fort Lee, N.J.; corrections officer Hecthan and Army veteran Hector are hoping to win big to help family and friends devastated by Hurricane Maria in their native Puerto Rico.

Travis and Michael are cousins and construction workers from Willow Wood, Ohio who love to lend a helping hand to those in need. With the all new "Free Fall +" in Round 1, and millions up for grabs on The Wall, will these cousins have what it takes to walk away with a massive pay out?

Jason and Jay are US Navy Veterans and husbands from Darnestown, Maryland. It's hard not to root for these dreamers as they face The Wall and look to walk away with millions of dollars.

Lisa, a mental health counselor from Wanatah, Ind., and Dan, a construction analyst and woodworker, take on the wall. With big drops, this married couple work their total to epic heights and attempt to walk away with a massive payout.

Brittany, a city event coordinator, and CJ, a middle school teacher, are siblings from Bridgeway, N.J., who take on the wall for their chance at $12 million.

Best friends and sisters Ebony and Deanna take on the Wall.

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Victor, a transit police officer, and wife Evelyn, who works in human resources, from Union, N.J., take a chance and risk cash prizes, all hoping the balls drop their way.

Brooke, a photographer, and her husband, Cody, a firefighter and paramedic from Las Vegas, take a chance and risk cash prizes, all hoping the balls drop their way.

Mother-daughter duo Alex and Jodie, both nurses from Oklahoma City, Okla., share a passion for rescuing animals and together have fostered more than 150; the two hope to hit the $1 million mark on the wall.

Father and son duo Bob, a pediatric eye doctor, and Peter, a medical resident, take on the wall to benefit the Strong City Foundation, a nonprofit that helps underserved youth.

Jahmar, a high school counselor, and his uncle Michael, a limo driver, take on the wall; the Superdrop gives the two the chance to win big.

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Tamara, a professor, and her husband Leo, a mental health therapist, from Jonesboro, Arkansas, take on the wall and the all-new Free Fall+ for a chance at over $12 million.

Erin and Rachael risk everything to conquer the Wall.

Niko, a Purple Heart veteran, and his wife, Kassie, from Phoenix, Ariz., take a chance and risk cash prizes, all hoping the balls drop their way.

Jakia, a Laurel, Md., nutritionist at a non-profit, and her cousin Shana, a grocery store manager from Washington, D.C., take a chance and risk cash prizes, all hoping the balls drop their way.

Debbie, a retired police officer, and Ghadir, a student, are a grandmother and granddaughter duo from Baltimore, Maryland. With the all-new "Free Fall+", and millions of dollars just a drop away, there is no stopping how far this duo will go.

Terra, a primary school principal, and Brandi, an admissions counselor, are sisters from Atlanta Georgia. With life changing money on The Wall, will these two ace their game and walk away with millions?

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In the season finale, two-person teams answer questions for cash and prizes.

Social worker Victoria and her mother Cassandra risk it all for a holiday miracle on this special episode of The Wall.

Rebekah and Chris, a married couple from Houston, Texas. Rebekah is a Boston Bombing Marathon survivor who lost her leg in the blast as she was shielding her young son from danger. After both Rebekah and her son recovered from the bombing Rebekah realized that the emotional injuries her son sustained were far worse than the physical ones. This led Rebekah to form a charity to help kids suffering from PTSD. Rebekah vowed to do everything she could have done on two legs, on one leg, including winning millions of dollars.

Valencia and Essence, a mother-daughter flight attendant duo from Indianapolis, take on the wall, which has them flying high; Valencia goes to isolation to take on the trivia, while Essence is out front directing those balls towards the million.