NOVA follows 13 sedentary people through a nine-month regimen designed to prepare them for the grueling Boston Marathon. watch
Expedition: Africa takes viewers on an adventure of epic proportions as four renowned explorers attempt to follow the historic journey of Henry Morton Stanley and his search for the "lost" Dr. David Livingstone. The twist? These modern day explorers will have to complete the mission with only a compass, maps and Stanley's journals from the original mission. Its a larger than life journey through the heart of Africa, testing man's endurance under the most severe situations. The explorers face dehydration, deadly animals, disease and each other, knowing that any step could be their last. watch