In the picturesque town of Portorosso, Italy, an unlikely friendship blossoms between two young outsiders, Luca Paguro and Alberto Scorfano. The duo shares a passion for exploring the ocean's depths, riding vintage Vespa scooters, and indulging in local delicacies. As they navigate their adolescence, they stumble upon a hidden world beneath the waves, where they discover their true identities as sea monsters from another realm. Luca, with his bright orange scales and endearing smile, is an awkward yet lovable teenager who struggles to fit in among humans. Alberto, on the other hand, is a smooth-talking, charismatic fish with a flair for drama. As they delve deeper into the mysteries of their underwater world, they face the daunting task of keeping their true nature hidden from the prying eyes of the townspeople. Their adventures are filled with humor, excitement, and heartwarming moments as Luca and Alberto explore the wonders of Portorosso's beachside culture. They befriend a local girl named Giulia, who becomes entangled in their secrets and joins them on a series of escapades. As they ride the waves of adolescence, they learn valuable lessons about identity, acceptance, and the importance of embracing one's true self. As the summer wears on, Luca and Alberto must confront the consequences of their dual lives: living among humans while harboring a deep secret that threatens to destroy their friendship and their connection with Giulia. Will they find a way to reconcile their two worlds and maintain their relationships? Or will the pressures of hiding their true selves ultimately drive them apart? Set against the stunning backdrop of the Italian Riviera, Luca is a poignant coming-of-age tale that explores the complexities of adolescence, the power of friendship, and the importance of self-acceptance. With its vibrant animation, witty dialogue, and memorable characters, this film is sure to captivate audiences of all ages.