Marine scientist Fred Miller designs the world's first underwater home, but when the business magnate funding his work threatens to end the project, Miller volunteers to live in it with his own family to prove it's practical. The underwater clan includes his water-phobic wife and his daughter and son, who are part of a rock and roll band. They bring along the lead singer and drummer. Along the way, they have to contend with a competing engineer who promises to mine the ocean floor for the businessman. A record producer likes their music and books them on TV, leading the kids to try to escape to the surface.。伫立于近未来大都市一角的忍者宅邸。 住在那里的忍者一族石动家的长女·律花,憧憬着身为研究人员的父亲。 她觉得平凡而幸福的生活会一直持续下去,但就在某一天,宅邸突然遭到某人的袭击。面对走投无路的危机,律花果敢地挺身而出,但——。 成为劈开黑暗的“黑”吧!。