Five warriors, the Ryuseigers, who once fled their home planet Marina after its destruction by the Dark Armada Black Hole, now fight to protect Earth as their new home. They head toward the ruins where the legendary giant robot Chronos Kaiser lies dormant. Meanwhile, Shark General and Dr. Octopus of Black Hole target a high-stakes auction gathering wealthy elites across the galaxy. Seeking the precious Platinum Juice secreted by Marina women, they deploy agents Blue and Pink to capture their prey. The battle lines are drawn as the Ryuseigers' struggle intertwines with Black Hole's sinister conspiracy.