SAS WHO DARES WINS: MEET THIS YEAR'S RECRUITS (PICTURES)

Ex-Special Forces soldiers put recruits through a recreation of the SAS selection process.

In these uncertain times, 21 men and women head into the wilds of Scotland to be put through the toughest and most unforgiving selection course yet.

Chief Instructor Ant Middleton and his team of Directing Staff (DS), Foxy and Billy, are joined by ex-SAS operative Melvyn, as they employ some tough, never-previously-seen tasks. For the DS, the Highlands is where their Special Forces skills were honed.

For the nervous recruits, the remote Scottish island of Raasay will be a terrain that pushes them to their limits. In the first episode, the new recruits face an intense start.

Selection begins with an ambush, as the DS hijack the train the recruits arrive on.

Looking for the kind of recruit that can handle anything thrown at them, the DS pit them against each other in a race up a 4000-foot mountain, followed by a 100-foot abseil off an oil rig.

When the pressure is applied, who will have the strength of character to progress and who will let nerves get the better of them?

SAS: Who Dares Wins begins Sunday 09th May at 9pm on Channel 4.