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.
