剧情介绍
Theearth’ssurfacehaschangeddramaticallyovertime.Itsfragilecrusthasfoldedandbuckledandfaulted,andnowherearethesenaturalforcesmoreevidentthanintheworld’sgreatmountains.Inthisepisode,viewersventuretothefootofMountEverest,beforeexploringthesmallerbutmucholdermountainrangesofCentralAustralia,andthentheAndes,thelongestmountainrangeonearth. 展开全部
