Terre boule de neige
This episode mainly focuses on the two Snowball Earth events in the mid-Precambrian period, and the effect they had on life. It simulates a similar occurrence in the modern day. Animals included: "Pteridinium", "Yorgia", "Kimberella", "Arandaspis", "Trilobites", "Chain Coral" (fossil) and "Dicranurus" (fossil)