Sisters Tina and Tracy try to win life-changing money and childhood sweethearts Bianca and Ky see how high up the never-ending money ladder they can go.

Childhood sweethearts Bianca and Ky - and husband-and-wife team Charlie and Helen - hope that Ant and Dec can give away the biggest prize in quiz show history this time.

Ant and Dec invite cousins Adele and Adele and engaged couple Zanesh and Melike to climb up their never-ending money ladder as both pairs look to win a truly life-changing prize.

Ant and Dec welcome engaged couple Zanesh and Melike back to the show before father-and-son team David and Mark play a remarkable game.

Best friends Terri and Jess - and husband and wife Paul and Ellie - each take on the Limitless Ladder as Ant and Dec try to help them win truly life-changing sums of money.

Paul and Ellie continue their journey up the Limitless Ladder. They want to win enough money to buy a swanky new RV and take the ultimate trip of a lifetime around Europe. Plus, Ant and Dec welcome father and daughter Denis and Becca to the studio.

Brother and sister-in-law Joe and Jo - and stepfather and son-in-law Steve and Jordan take on the Limitless Ladder and a stack of fiendish questions.

Steve and Jordan finish their game before husband-and-wife team Richard and Lorna get their chance to face the Limitless Ladder and win some major money.

Husband-and-wife team Richard and Lorna are back to finish their game and have got their sights set on a seven-figure sum. Emotions then run high and there are tears all round as postman David and his partner Aaron take on the Limitless Ladder, hoping to win enough to set themselves up with their perfect family home.

Ant and Dec try to help more contestants climb the never-ending money ladder and first up are husband-and-wife team Dan and Sarah, who would like to buy their first home and build an animal sanctuary for their local community. It's then the turn of married couple Nik and Khajal to take on the Limitless Ladder, with Nik hoping to spend his winnings on a purpose-built barbecue shack, but Khajal's not so sure.

More life-changing money is on offer as Ant and Dec introduce NHS matrons Karis and Tim - then husband-and-wife team Arj and Charlotte - to the Limitless Ladder.

Married couple Arj and Charlotte are back to continue their game before the turn of best friends from Northern Ireland Phil and Arainn sees them play a thrilling game.

Jimmy Carr and Katherine Ryan continue their climb up the ladder. Geordie best friends, Helen and Kelly, think they've got what it takes to conquer the Limitless Ladder.

Married NHS workers, Will and Kathryn, are the first team to take on the never-ending money ladder.

Zee and his dad Tony return to take on the Limitless money ladder – but how high will they dare to climb?

Husband-and-wife team Matt and Hannah take on the Limitless Money Ladder and play for a truly life-changing cash prize.

Sarah and her mum, Fiona, face the ultimate challenge as they try to climb the never-ending money ladder.

Ant and Dec roll out the red carpet for celebrity teams for the first time as Rylan, David Walliams, Jimmy Carr, and Katherine Ryan take on the show for charity.

Ant and Dec host the quiz with a limitless money ladder and a never-ending jackpot. Married couple Crish and Karthy are here to win a huge amount of money - all they need to do is make sure that they cash out before they crash out.

Sisters Sarah and Amy return to take on the Limitless Ladder, but will they cash out before they crash out?

Brothers Lee and Kye return to take on the Limitless money ladder.

Colin and Michael return to the studio and continue their amazing climb up the Limitless Ladder, and we also meet Jenny and Clive before they get married in the morning!

Husband and wife Nathan and Taylor are back to continue their journey up the ladder. Tracey-Jane and Troy, a mum and son duo from Liverpool believe that they might have what it takes to conquer the Limitless Ladder and change their lives forever.