SAS Who Dares Wins: Jungle Hell | Series 8 Preview (Channel 4)

The toughest show on TV is back as 20 new recruits face 'Jungle Hell'. The jungle phase of SAS selection is used as the benchmark for special forces soldiers. The new series is led by an elite team of ex-special forces operators from the UK and US.

Taking the lead this year is Billy Billingham, expert in jungle warfare. He's teamed up with new Directing Staff (DS) Chris Oliver, who's military experience spans over 16 years, serving all over the globe.

Chris is joined once again by Foxy and Rudy Reyes from the US. The Jungle phase is the most gruelling and the DS have combined their skills and experience in jungle warfare to create the ultimate test of man versus the elements, where everything's out to kill you. Vietnam is flooded with conflict history and it's where the rules of guerrilla warfare were re-written.

The conditions can work for or against, push you or break you, but ultimately only the toughest survive. In the first instance, the 20 recruits are tasked with the challenge of traversing the 'trainasium', suspended a dizzying 50 feet above the ground. Recruits must take control of their fears to get across.

Fear has no place in the special forces. If you can't control your fear, you will never make it as an elite soldier. Recruits must prove to the DS they can conquer their greatest fears and not be controlled by them.

Later, they face an early inspection to check they are following guidelines set by the DS. When some are caught out for poor discipline, everyone is made to pay the price.

Finally, the recruits are challenged to complete one of the most dangerous infiltration methods used by the SAS - a waterfall abseil. With a powerful 215-foot drop to navigate, one of the recruits becomes dangerously enveloped by the force of the water.

SAS Who Dares Wins begins Monday 23rd January on Channel 4.