Nick Jonas got a little too close to Mother Nature for Monday night's (August 1) part one premiere of "Running Wild With Bear Grylls" when he stripped down to his underwear and crossed an ice-cold lake.
In the clip, the JoBro and Grylls use their bags as floatees to get across the Sierra Nevada Mountains lake. Jonas immediately turns red in the face after hopping in the water but challenges himself to get back to land by repeatedly screaming during the swim. Dare to underestimate the move? Well, the brief swim could have potentially caused cardiac arrest. And still, Nick did loose circulation in his hands and feet.
"I'm freezing right now. My toes are freezing. But it's crazy what happens to your body," he said after getting his clothes back. "The instincts that kick in. You just have to go and push yourself and for me, I was screaming stuff, too. I don't remember what I was screaming, but I was trying to muster up any courage that I had."
Head over to NBC if you want to see Nick's full episode on "Running Wild" and catch the next episode on August 22 (Monday) at 10 p.m. ET.
Photo: YouTube/Running Wild with Bear Grylls