With eight members in their team, the Kyurangers confront Eriedrone and Stinger. Lucky once again asks Stinger to join their cause. Divided between his faith and his feelings, Stinger makes the final decision.

As the other Kyurangers face a crisis when the Orion goes haywire, Lucky takes Kotaro back to Earth, but when they are attacked by the enemy, Big Bear's spirit appears to them, and after witnessing Kotaro's true determination to protect the world, grants him the power to fight as the 11th Kyuranger.

The Kyurangers return to Earth to stop Don Armage's plan to destroy the universe, but as Tsurugi's condition worsens, Doctor Anton stands in their way. Anton transform into his monster form and enchant citizen to attack Kyurangers

Now possessing Tsurugi's body, Don Armage absorbs Shou and is stronger than ever. Having a plan to rescue both from Don Armage's grasp, the remaining Kyurangers prepare themselves for the final battle.

The Kyurangers are reunited once more and face Don Armage one last time to decide the fate of the universe.