has undertaken a 'gut-wrenching' mission to climb Mount Everest to find the body of his brother Michael - revealing that he retraced the 'exact steps' he took when he died descending the world's highest peak in 1999.
The star, 34, received months of therapy before making the 'emotional journey' to find his older brother - a seasoned climber who died shortly after becoming the youngest Briton ever to scale the mountain.
Michael Matthews, 22, had spent around 20 minutes at the summit before he is said to have gotten into trouble just three hours after beginning to make his way down the south descent through the 'death zone' on May 13, 1999.
He was also the brother of 's husband, the racing driver turned hedge fund manager James Matthews, 47.
The experienced mountaineer, who had previously conquered Kilimanjaro, the Pyrenees and the Swiss Alps, was the 162nd person to die on Everest.
Michael's body has never been recovered and his family have never been able to fully understand what happened to him.
But in a new documentary with Disney+, Spencer - who was only ten at the time - embarks on a journey to find his brother's body and bring it home.
He was said to have the backing of his parents and his brother James to create the 'emotional' project.
Speaking to Holly Rubenstein's The Travel Diaries podcast, he said: ‘I was aching to find out more about his death.
I was ten at the time. I remember thinking it was really unfair. I always believed that I'd see him again and never took it on the chin that he was dead. I thought it was impossible. It never crushed me in the way it affected my parents and my brother.
Michael Matthews, 22, (left), with friend Jamie Everett in front of the summit of Everest in 1999
Spencer (youngest bottom) described his brother Michael, left next to sibling James, as an 'incredible force of nature'
In a new documentary with Disney+, Spencer - who was only ten at the time - embarks on a journey to find his brother's body and bring it home
Spencer Matthews is married to model and TV star Vogue Williams (pictured together at Swingers Crazy Golf Club in London)
Mr Matthews on the mountain in 1999, 라카지노 when he broke Mr Grylls' record and became the youngest Briton to climb the world's highest peak
<div class="art-ins mol-factbox news halfRHS" data-version="2" id="mol-86142110-6454-11ed-9743-7be68bf22c05" website Spencer Matthews' mission to find body of brother on Everest