Even the toughest men have weaknesses and Bear Grylls' weakness is bees.
The adventurer is severely allergic to the insect and had to receive emergency medical attention after he was stung shooting his latest series in the Pacific Islands.
He was filming for Treasure Island on a boat, miles from anywhere when he was stung, reports the Daily Mail.
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The 45-year-old attempted to continue filming, but medics stopped him when they realised the severity of the situation.
His eye swelled and almost closed before he was injected with an EpiPen, saving him.
"The irony of Bear the survivalist being stung…and needing to be treated with an EpiPen was a bizarre moment," contestant Mano Shanmuganathan told the Daily Star.
Grylls' has been stung before, causing a similar reaction in 2016.
Photos of his previous bee encounter went viral on Twitter after users pointed out a startling similarity between the adventurer and British actor Benedict Cumberbatch.