SPENCER Matthews fought back tears on The One Show as he spoke about the emotional search for his dead brother’s body.
The 34-year-old's documentary Finding Michael is released on Disney+ tomorrow as Spencer retraces his late sibling's steps.
Michel died aged 22 just minutes after he became the youngest ever Briton to summit Mount Everest on May 13, 1999.
His body was left behind on the mountain’s chillingly named Death Zone at around 8,500 metres after he was caught in a storm.
Spencer told The One Show hosts Alex Jones and Roman Kemp: "When we took the difficult decision to undertake the mission I knew I wanted to be there myself.
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"We scrapped together any information we had. Some of the footage of Michael on the mountain I'd never seen before.
"It was the first time I'd seen him on camera, because as a kid we didn't do home movies or anything.
"Retracing his steps and understanding his final days a bit better was quite cathartic for me..."
Spencer cut off as his eyes filled with tears and fell silent.
Host Alex stepped in to bring the interview to a close after describing Finding Michael as "one of the best documentaries I've ever watched".
She added: "It is an incredible watch. It is definitely worth everyone watching if they can."
After finding fame on Made In Chelsea in 2011, he became a household name with a stint in I’m A Celebrity in 2015 and winning Channel 4’s The Jump in 2017.
Spencer's married to presenter Vogue Williams and shares three children with her - Theodore, four, Gigi, two, and Otto.