The Dark Fleet Black Hole once destroyed their home planet Marina, and the five Ryuseigers, who fled to Earth, fight to protect their second home, Earth, from the evil hands of the Black Hole! ! Ryuseiger and his friends head for the ruins where the legendary giant robot Chronokaiser sleeps. On the other hand, General Shark and Dr. Octopus of Black Hole set their sights on blue and pink for the platinum juice secreted by women from Alien Marina, in order to make them the centerpieces of auctions held for rich people throughout the galaxy.
