Ben Stiller, Bear Grylls, Running Wild

Duncan Gaudin/NBC

For once, Ben Stiller isn't the one trying to make someone else laugh!

Following Zac Efron's memorable appearance in the premiere, the actor is the next celebrity going on an excursion on NBC's new reality series Running Wild with Bear Grylls. And Bear Grylls decides to take a comedic approach when it comes to helping the Secret Life of Walter Mitty star rappel for the first time in our exclusive sneak peek from Stiller's episode. 

"Ben has never rappelled before, so I am going to try and make it a little bit fun," the host explains. "I figured if he's laughing, he's not scared!"

But does his sneaky tactic work? 

 "This isn't safe!" Stiller exclaims while rappelling in order to find food and shelter for the night. So does the Zoolander star make it down? Press play on our exclusive clip above to find out.

After Stiller, the next celebs set to hit the wild with Grylls are Channing Tatum, Tom Arnold and Deion Sanders

Running Wild with Bear Grylls airs Monday at 8 p.m. on NBC.

(E! and NBC are both part of the NBCUniversal family.)

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