http://www.hollywood.com/tv/Vanished/5194307

Synopsis:
On August 2, 1947, an airliner took off from Buenos Aires for Santiago, Chile. It never arrived. Then in 1998, two mountaineers stumbled across a huge engine on the Tupangato glacier in the Andes. Despite thorough previous searches of the glacier, no wreckage had been sighted. The Argentine army led an expedition to the crash site, and, after extensive detective work, reconstructed the plane's final minutes and identified human remains. Finally, they came up with a surprising theory to explain why the wreckage had vanished for so long before mysteriously reappearing.
Cast

Name Credits Narration
David Ogden Stiers
Nicolas Villamizar
Tony Molina
Jorge Drosten