S1, E3: World-renowned survivalist Bear Grylls (“Get Out Alive with Bear Grylls,” “Man vs. Wild”) spends two days with actor Channing Tatum (“22 Jump Street”) traveling through the tough terrain of Yosemite National Park in California. As they encounter challenging obstacles, Channing approaches his adventure with the attitude that if Bear can do it, then he can too...or he'll die trying.