SAS: Who Dares Wins is already one of the toughest shows on TV, and now it's become even more daunting with new version Jungle Hell.
Here's all you need to know about the 2023 series, including when it will air and who the directing staff are.
When does SAS: Who Dares Wins – Jungle Hell begin?
The 2023 series of the gruelling contest starts tonight, Monday, 23 January at 9pm on Channel 4.
It will air in weekly episodes for six weeks.
Who are the SAS: Who Dares Wins 2023 directing staff?
The directing staff line-up looks a little different this series as there's a different boss for the jungle-set series.
Show veteran Mark "Billy" Billingham will step up as chief instructor as he is uniquely qualified for training in the jungle.
He spent 27 years in the military, reaching the highest NCO rank in the SAS as Sergeant Major and started his career in the jungle in Belize in 1984, finishing in the jungle in 2008 in Brunei.
An advanced jungle warfare instructor, his time spent in the jungle from training to operations, including Malaysia, Indonesia, Belize, British Guiana and Africa, is unparalleled.
When he left the military, he was the senior military instructor in the world’s leading jungle warfare training school.
Rudy Reyes, who joined the series last year as chief instructor, will return but take a step back from being in charge.
Remi Adeleke, who joined with Rudy last series, is not back - instead he will be replaced by newly recruited Chris Oliver, a 40-year-old former Special Forces operator and Royal Marines mountain leader who served in the special boat service.
Completing the line-up is Billy's long-time colleague Jason "Foxy" Fox.
What happens in SAS: Who Dares Wins – Jungle Hell?
As usual, a band of recruits will take on a version of the tough SAS selection process, with contestants weeded out along the way as the challenges progress.
But this time, the mission is said to be even more gruelling than ever before as it will take place in North Vietnam's Thung Ui, billed as "the deepest, darkest, most unforgiving jungle in the world".
Over six episodes, 20 tough men and women will try their best to impress the directing staff enough to make it through selection.
Who are the recruits for the new series?
The 20 brave recruits have been announced ahead of their debut in the jungle.
In the line-up are a firefighter, a ballet dancer, a stay-at-home mum, a bin man and a farmer's wife.
All of them have been training hard to pass the selection process, but as keen viewers will know, few of them will manage to get to the end of the series and pass the course.
SAS: Who Dares Wins - Jungle Hell begins on Monday, 23 January at 9pm on Channel 4.