Florida party girl Rex (Roberts) turns out to be the only hope for the NASA space program after a fluke puts her in training with other candidates who may have better resumes, but don't have her smarts, heart and moxie.
许多年前,亚特兰蒂斯女王(妮可·基德曼 Nicole Kidman 饰)和人类相知相恋,共同孕育了爱情的结晶——后来被陆地人称为海王的亚瑟·库瑞(杰森·莫玛 Jason Momoa 饰)。在成长的过程中,亚瑟接受海底导师维科(威廉·达福 Willem Dafoe 饰)的严苛训练,时刻渴望去看望母亲,然而作为混血的私生子这却是奢望。与此同时,亚瑟的同母异父兄弟奥…