The search is on for the remaining four Kyurangers. Lucky lands on Planet Jigama and encounters Balance and Nāga. They call themselves the “Phantom Thief Group BN”, stealing only from Jark Matter. Lucky hears their next aim is to steal a jewel from Jark Matter’s space ship Moraimarz. They soon meet the first Daikan commander, Gamettsui, who Balance betrayed. Elsewhere, Jark Matter’s general, Eridron, appears before Hammy and the others.

The Kyurangers are reunited again and they set out for the Crux System to confront Don Armage. On the way there, they decide to infiltrate a competition held by Hoshi Minato, known as the greatest artist in the universe, to learn about his possible connection with Jark Matter.

Still surprised with the recent revelations about Don Armage, the Kyurangers depart to answer a distress signal from Planet Luth, where Lucky was raised.

The Kyurangers have no clue about Don Armage's whereabouts since their last battle, until they hear of planets exploding mysteriously in the Corvus System and set course there, unaware that Tsurugi is keeping a secret from the others.

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.