Clever, kindhearted Kubo, ekes out a humble living, telling stories to the people of his seaside town including Hosato, Akihiro and Kameyo. But his relatively quiet existence is shattered when he accidentally summons a spirit from his past which storms down from the heavens to enforce an age-old vendetta. Now on the run, Kubo joins forces with Monkey and Beetle, and sets out on a thrilling quest to save his family and solve the mystery of his fallen father, the greatest samurai warrior the world has ever known. With the help of his shamisen - a magical musical instrument - Kubo must battle gods and monsters, including the vengeful Moon King and the evil twin Sisters to unlock the secret of his legacy, reunite his family and fulfill his heroic destiny.