Running Wild With Bear Grylls | EW.com

First Look: This Is Us star Sterling K. Brown on Running Wild With Bear Grylls

Running Wild With Bear Grylls: Courteney Cox reacts to dead sheep

Nick Jonas strips down to underwear, crosses lake with Bear Grylls

Julianne Hough & Nick Jonas among Bear Grylls' guests

Running Wild with Bear Grylls: Courteney Cox, Nick Jonas to appear

President Obama's 'Running Wild with Bear Grylls' episode to air Dec. 17 on NBC

Obama on Running Wild: Eats half-eaten fish with Bear Grylls in new clip

Running Wild: Obama takes selfies with Bear Grylls in Alaskan wilderness

Michelle Rodriguez on Running Wild with Bear Grylls: Eats a mouse soaked in her own urine

Ed Helms on Running Wild with Bear Grylls: Actor rappels down a cliff