In the first episode, we see Australopithecus afarensis, and focus on their evolved bipedality. The story follows the famous Lucy and her relatives, as they first develop a leadership conflict following the death of the alpha male due to a crocodile attack, and then are attacked by a rival troop. The attack ends with the death of Lucy herself, and her eldest daughter caring for Lucy's now-orphaned baby sibling, as a sign of the developing humanity in these "apemen".
Animals: Ancylotherium · Deinotherium · Verreaux's eagle · Crocodylus thorbjarnarsoni · Zebra finch