In a once-in-a-millennium event, a mermaid princess is chosen to rise to the surface and find true love's kiss with a human. Unknowingly the chosen one for the 1000th year, she faces the daunting task of fulfilling this ancient prophecy to prevent the sea from falling into the clutches of the malevolent witch, Windia. Determined to safeguard her ocean home, the princess sets out on a journey to embrace her destiny and secure the future of her beloved aquatic realm.