GK Barry is left gasping for air in I'm A Celeb's hardest Bushtucker Trial yet.
The podcast host, 25, and Radio 1 host Dean McCullough team up for the Drown in the Dumps challenge.
In a preview clip, GK, real name Grace, is seen holding her breath as she swims to the bottom of a tank to unlock a star with a key.
But it's not as easy as it sounds, as the water continues to fill the tank - leaving the star gasping for air.
Grace attempts to unlock the various padlocks with the key - with encouragement from hosts Ant and Dec.
But the YouTuber is left struggling as she's forced to go back up to the surface to catch her breath.
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ITV viewers will have to tune in tonight to see how many stars the duo gets.
Earlier this week, Grace took on the Vile Volcano in a bid to win stars for camp, but was faced with a massive spider on her helmet.
Heading underground, the Saving Grace podcast host wasn't alone, with her joined by critters galore for her first trial of the season.
Grace impressed viewers after bagging nine out of ten stars.
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While last night Dean dramatically quit the Bushtucker Trial after breaking down in tears.
The Sinister Sarcophagus trial started with Dean climbing into a mummy figurine, as he attempted to steady his nerves.
The Radio 1 star was then visibly shaken as he squeezed his head into an insect-filled box to retrieve stars for the camp with his mouth.
Ant and Dec asked him a series of Egypt-related questions and for every one he answered correctly, a star was lowered down.
He told the presenters: "You’re so extra this series, so extra!’ before adding: “I went to Egypt years ago, but I wasn’t paying attention."
Dean had to release the stars using only his mouth, however, he quickly began to panic.
Within moments, he was shouting: "oh no, oh no".
He then screamed the famous words: "I’m A Celebrity… Get Me Out of Here!"
His decision to quit meant the camp won only two stars, leaving them with fewer rations for the night.