bbbAmissiontodiscoverandre-createunexcavatedworldsstillhiddenbeneaththeearth.                                  　　Episodesinclude…                                  　　S1E1FortressoftheKnightsTemplar                                  　　S1E2GhostCityofthePacific                                  　　S1E3ElDoradoCityofGold                                  　　S1E4Stonehenge                                  　　S1E5Petra'sHiddenOrigins                                  　　S1E6IncaIslandintheSky