Renee shows Boone the crystal. Boone and Renee decide to find and destroy all Atavus hives so the Taelons can't recover them. Sondoval revives Zo'or and turns Zo'or into a female Atavus. Zo'or makes it her mission to destroy Boone. Sandoval makes it her mission to recover the crystal.
Tropes
Gender Bender: Zo'or, formerly neuter becomes female.
One-Gender Race: The Taelons
Our Vampires Are Different: The Atavus