Top-ratedS1.E1 ∙ Ocean RealmMon, Feb 12, 2007National Geographic investigates the awesome power of our water world.7.2/10 (25)Rate
Top-ratedS1.E2 ∙ Born of FireThu, Feb 15, 2007Explore what causes ground-shattering earthquakes and volcanic eruptions.7.4/10 (27)Rate
Top-ratedS1.E3 ∙ Destructive ForcesTue, Feb 20, 2007Venture on a geological journey to see how destructive forces constantly reshape our planet.7.1/10 (19)Rate