Sometimes the hero you are lies just beneath the surface.

This summer, DreamWorks Animation dives into the turbulent waters of high school with a hilarious, heartfelt action comedy about a shy teenager who discovers that she’s part of a legendary royal lineage of mythical sea krakens and that her destiny, in the depths of the oceans, is bigger than she ever dreamed.

Sweet, awkward 16-year-old Ruby Gillman, voiced by Lana Condor, is desperate to fit in at Oceanside High but mostly feels invisible.

She’s math-tutoring her skater-boy crush, voiced by Jaboukie Young-White, who only seems to admire her for her fractals, and she’s prevented from hanging out with the cool kids at the beach because her over-protective supermom, voiced by Toni Collette, has forbidden Ruby from ever getting in the water.

But when she breaks her mom’s #1 rule, Ruby will discover that she is a direct descendant of the warrior Kraken queens and is destined to inherit the throne from her commanding grandmother, voiced by Jane Fonda, the Warrior Queen of the Seven Seas.

The Krakens have sworn to protect the world’s oceans against the vain, power-hungry mermaids. One significant and immediate problem: The school’s beautiful, popular new girl, Chelsea, voiced by Annie Murphy, is a mermaid. Ruby must ultimately embrace who she is and go big to protect those she loves most.