In this hour-long alternative series, “Running Wild with Bear Grylls,” the famed adventurer and survivalist will take six celebrities into the most remote and wild locations in the U.S. and around the world for a 48-hour journey of a lifetime. The celebrities who will be partnered one-on-one with Grylls in their own stand-alone episodes include actor Zac Efron (“Neighbors”), actor-director Ben Stiller (“The Secret Life of Walter Mitty”), actor Channing Tatum (“22 Jump Street”), NFL Hall of Famer Deion Sanders, actor Tom Arnold (“Sons of Anarchy”) and MSNBC and “Today” anchor Tamron Hall.