Casey and Chris Keefer trek into the heart of Alaska to recover a plane that disappeared while carrying two American politicians. The brothers battle the elements and conquer glaciers as they attempt to solve the 47-year-old mystery.
Chris and Casey Keefer travel to Ecuador to find a colony of giants. The brothers trek through the jungle, searching high and low for clues leading to the lost civilization.
Casey and Chris Keefer are on the road to El Dorado to find the lost City of Gold.