Adventurer Ed Stafford has walked the length of the Amazon River -- he is the first person to accomplish that -- and survived alone for 60 days on a desert island near Fiji (a feat chronicled in "Naked Castaway"), so perhaps the challenges presented in "Marooned" aren't that daunting. Filmed in Venezuela's Gran Sabana mountains, Botswana's Okavango Delta, Romania's Carpathian Mountains, the Western Australia coast, and Borneo's Brunei jungles, the five hourlong episodes see Stafford -- a former British Army captain -- attempt to last 10 days in the harsh environments with nothing more than a camera. Viewers are provided a fly-on-the-wall perspective as Ed tries to find food, make fire, process water to drink, and build a shelter -- among many other life-saving challenges.