A hospital doctor has taken on some of the toughest forms of military training from across the world - and even impressed her unrelenting instructors.
Former Bedford schoolgirl Dr Clare Miller was among 29 men and women selected to take part in the BBC2 documentary Special Forces: Ultimate Hell Week.
And she was picked out by one of the show’s instructors as being the ‘strongest candidate’.
Her proud mother Judy said: “She really loved it, which is hard to imagine when you see what they had to do. I’m incredibly proud.”
The group were filmed as they took on some of the gruelling tests that are used to put recruits to the world’s elite fighting forces through their paces.
Among the challenges was the Seals infamous surf torture, which involves hours of press ups, push ups and commando crawls in the sea.
They were also subjected to interrogation, were woken by gun fire and shouting after two hours sleep and drenched in water and forced to endure ‘beastings’.
In the first episode, which was aired on Sunday evening, the 29 recruits met Ray and Woodie - two former members of the US Navy Seals.
Former Dame Alice Harpur schoolgirl Clare, now 31, and a haematology doctor, is no stranger to testing her limits. She is a duathlon (running and cycling) and obstacle course champion, and an accomplished rower - she represented Edinburgh University during her student days.
The registrar took two weeks holiday from her busy hospital work in London to take part in the show, returning to work just 24 hours after finishing filming.
Judy said: “She was very hungry because, of course, there went for hours without food and she used enormous amounts of energy.”
Although parents Judy and Sidney were concerned about Clare taking part in such an extreme challenge it came as no surprise as their super-fit daughter is often pushing herself to the limits. During a previous holiday she cycled more than 2,600 miles from France to Romania.
Ultimate Hell Week, much of which was filmed in the Brecon Beacons, is presented by retired cricketer Freddie Flintoff and continues for the next five Sundays at 9pm.