In a splendid kingdom by the shores of a vast sea, a young bard named Sadko dreams of adventures beyond his tranquil life as a musician. Yearning to experience the grandeur of life, he decides to embark on a journey that will take him into the unknown. With his lute in hand, Sadko navigates the treacherous waters in search of fortune and recognition. During his voyage, he is swept into an underwater world filled with wonders and dangers, where he meets the beautiful Sea Princess.
The story between Sadko and the princess becomes complicated when the Sea King, jealous of the attention his daughter is receiving from the brave human, poses a challenge: if Sadko can win the heart of the princess, he will be granted wealth and glory, but if he fails, he must remain in the abyss forever. As the narrative unfolds, Sadko encounters magical sea creatures and enchantments that test his courage and musical abilities.
Through beautiful visual sequences and an engaging soundtrack, the film weaves a blend of folklore and fantasy. What begins as a simple quest for success transforms into a profound exploration of love, sacrifice, and the true meaning of happiness. In the end, Sadko must decide between staying in the magical underwater world or returning home, where he truly belongs.