The second part of Defiance's season finale begins with New York in ruins and the ancient Votan terraforming ship prepared to destroy the world in order to create a new paradise for the Votan races. Stopping Irisa from following through with the plan is the only way to save billions of lives, but the Earth Repbulic's only plan involves her death. Nolan has another plan and is willing to do whatever it takes to save his daughter. Linda Hamilton's Pilar is determined to get Christy, Alak and their unborn child out of Defiance against the wishes of a newly reconciled Stahma and Datak. How will the end of the world be stopped, Irisa dead or alive?