Transformation

Ruby Gilman, a shy 16-year-old girl (voiced by Lana Condor) wants to integrate into the life of Coast High School, but she always feels that other classmates treat her as an invisible person and turn a blind eye. She is tutoring math for the skateboard boy she has a crush on (voiced by Jacoby Young-White), but he only seems to admire her for doing her homework well, and her protective tiger mother (voiced by Toni Collette) not only prohibits her from going to the beach with her cool classmates in school, but even strictly stipulates that she is never allowed to swim in the water. But when she violates her mother's No. 1 taboo, Ruby discovers that she is a direct descendant of the Siren Queen and Warrior, and destined to inherit the throne of her domineering grandmother (voiced by Jane Fonda), the Warrior Queen of the Seven Seas. The Kraken clan has sworn to defend the world and all oceans, and has been fighting against the vain, power-hungry Mermaid clan from ancient times to the present. But Ruby encounters a serious and urgent problem: the school's new transfer student Chelsea (voiced by Anne Murphy) is not only beautiful and popular, but also happens to be a mermaid. If Ruby wants to protect the people she loves most, she must bravely embrace who she truly is and thrive.