Bear Grylls warned Spencer Matthews that finding his brother's body on Mount Everest was not worth dying for.
The former 'Made In Chelsea' star teamed up with Disney Plus to make a documentary about his expedition to the world's highest peak looking for the remains of his late sibling Michael who died during a descent down the mountain back in 1999 when he was just 22.
In a trailer for the documentary, explorer Grylls told Spencer: "Stay safe. If you get hold of Mike, I hear his voice screaming that one loud.
"On average seven people attempting Everest lose their life. No mountain is worth dying for a second time over."
Speaking about his reasons for undertaking the journey, Spencer said: "Michael was my big brother. 20 odd years later we are sent this photograph of a body, it looks like it could be Michael.
"My heart says we should go and find him. And if we can, bring him home. We need the best people possible. We have one of the greatest, Nims Purja. We have to look all over the mountain."
Michael died shortly after becoming the youngest British climber to summit Mount Everest following in the footsteps of TV adventurer Grylls who previously completed the challenge at the age of 23.
Bear later led an exhibition back up the mountain in a bid to recover Michael's body, but it was not successful.
Speaking at the Oxford Union, Bear explained: "We actually had an expedition on Everest to try to recover the body of the brother of a good friend, who climbed it the year after I was there but was never found.
"We really tried. We had the best team in the world."
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