《BBC地平線系列:地心HD》劇情介紹：
ForcenturieswehavedreamtofreachingthecentreoftheEarth.Nowscientistsareuncoveringabizarreandalienworldthatlies4,000milesbeneathourfeet,unlikeanythingweknowonthesurface.Itisaplanetburiedwithintheplanetweknow,wherestormsragewithinaseaofwhite-hotmetalandagiantforestofcrystalsmakeupametalcorethesizeoftheMoon.Horiz...
