The program follows four modern day explorers—a navigator, a wildlife expert, a survivalist, and a journalist—as they substantially retrace H.M. Stanley's famed expedition to find Dr. David Livingstone. Their route deviates somewhat from Stanley's in that it includes a treacherous crossing of the Uluguru Mountains, which Stanley circumvented.

Allen Ludden
Kevin Sites
Self - Journalist
Pasquale Scaturro
Self - Navigator

Mireya Mayor
Self - Wildlife Expert

Benedict Allen
Self - Survivalist
American Experience65%
Michael Palin: Around the World in 80 Days75%
History 10171%
Drain the Oceans70%
Man vs. Wild70%
American Masters70%
The Reluctant Traveller with Eugene Levy74%
Down to Earth with Zac Efron76%
Medal of Honor66%
Doctor Who Confidential81%
Top Gear79%
Prehistoric Planet83%
Disney Gallery / Star Wars: The Mandalorian74%
Horizon73%
History's Greatest Mysteries78%
Animal80%
The Story of Film: An Odyssey77%
Biography67%
Pole to Pole with Will Smith67%
How Do They Do It?76%