Adrenaline Lab: Jeff Wise
Jeff Wise is a science writer, outdoor adventurer, and author of "Extreme Fear." He explains to Bear Grylls exactly what's happening to the body during the adrenaline rush.
Most Watched in Outdoor Activities
Gold Rush: Mom Drops A Bomb
While Parker is busy working three jobs at Big Nugget, his mother stops by for a stormy check-in on her son's health and safety.
Moonshiners: Law Comes Knockin
Tim has managed to stay one step ahead of the law so far. But the same can't be said for notorious moonshiner, Popcorn Sutton.
Flying Wild Alaska: One Tough Landing
On Ariel's final approach of her first solo flight, she faces dangerous cross winds. Will Ariel be able to stick the landing or will further complications arise?
Moonshiners: A Missing Tickle
Tim and Tickle are in the middle of executing a moonshine pickup. But there's a problem: there's no sign of Tickle after he drops off the moonshine.
Recent Videos in Outdoor Activities
North Woods Law: Daring Moose Rescue
The wardens get a call about a moose who has been stuck in a mud pit overnight and they race in to action. Can they save the animal before it is too late?
North Woods Law: Off the Grid and In Trouble
A local man gives the wardens and the local police trouble about dumping his trash in a local water source. He takes things to the extreme when he calls 911 to report that he is under siege by local law enforcement.