Augur taps into the Taelon Commonality, breaking Da'an's contact with the Commonality. Da'an regresses into the "Atavus", a pre-historic version of the Taelons. Zo'or tells Sandoval to kill Da'an. Da'an is a threat for the Atavus only has a hunger for life spirit. The Resistance lures the Atavus to try to save Da'an.