Abram makes plans to destroy the Ancestor, but Kylie takes matters into her own hands. The final battle between the Skin Riders and the Reborns begins, and the origin of the drones is finally revealed.
Extinct takes place 400 years after the extinction of the human race and follows a small group of humans who are revived by an alien civilization. Over the course of the season, the series carries the colony of revived humans through struggles with the aliens who extinguished humankind centuries before, while trying to understand and get along with the mysterious aliens who revived them.