Howlyn finally reaches the ship that brought him and the other Atavus to Earth, awakening some of the elite troops that have been frozen in stasis for hundreds of thousands of years. Ra'jel brings Liam Kincaid back for the final confrontation. Hubble Urich supplies the Resistance members with prototype energy Hand Cannons, capable of vaporizing an Atavus with a single shot. The heroes storm the Atavus ship, which ends up being disabled due to Howlyn's impatience. Howlyn is killed by his new Number Two. Sandoval finally learns the location of the Resistance base and attacks it, only to be killed by Renee. Renee and Liam manage to take out all the awakened Atavus and prepare to blow up the ship. However, Yulyn pleads with her on behalf of his people. Since the ship's navigation computer holds the coordinates of the Atavus homeworld, Renee decides to return Yulyn and the sleeping Atavus home. Ra'jel, Liam, Renee, and Yulyn leave Earth aboard the Taelon mothership with the Atavus stasis pod, installing the Atavus ID drive to restore full power to the mothership.
- And the Adventure Continues: The ending implies that Ra'jel, Liam, Renee, and Yulyn will explore the stars in the Taelon mothership.
- Back for the Finale: Liam, who has been missing for the entire season, returns just in time to help end the Atavus threat.
- The Bus Came Back: Liam returns without an explanation for his absence for the entire season.
- Character Death: Howlyn meets his end when his new Number Two pulls a Klingon Promotion.
- Grand Finale
- Hand Cannon: The prototype energy weapons that Hubble Urich gives to the Resistance members allow them to storm the Atavus ship and kill any Atavus they see with a single blast.
- Impaled with Extreme Prejudice: Sandoval's final fate, courtesy of Renee, who drop-kicks him from a catwalk onto some spikes at the Resistance base.
- Howlyn is killed when Jayliss stabs him with his energy claws.
- Klingon Promotion: Jayliss, the leader of the sleeping Atavus troops, kills Howlyn after the latter's impatience leads to the ship's weapons overloading and damaging the ship.
- Plug 'n' Play Technology: Ra'jel easily installs the Atavus ID drive into the Taelon mothership despite the fact that Atavus tech is hundreds of thousands of years older.
- Ragnarök Proofing: The Atavus ship is still functional after spending hundreds of thousands of years underground.
- Self-Destruct Mechanism: Jayliss initiates one after Renee storms the ship's bridge. Ra'jel manages to evacuate the sleeping Atavus and the ship's ID drive before it blows.
