V. 1. episode 1. The building of the earth ; episode 2. The frozen world
v. 2. episode 3. The northern forests ; episode 4. Jungle
v. 3. episode 5. Seas of grass ; episode 6. The baking deserts
v. 4. episode 7. The community of the skies ; episode 8. Sweet fresh water ; episode 9. The margins of the land
v. 5. episode 10. Worlds apart ; episode 11. Oceans ; episode 12. New worlds.