Ex-Special Forces soldiers put recruits through a recreation of the SAS selection process.
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.
SAS: Who Dares Wins begins Sunday 9th May at 9pm on Channel 4.