The Bride of the Sun takes us on a journey to Peru, where Dick Montgomery is hoping to marry his fiancé, Maria-Teresa de la Torre. She is the daughter of a Spanish marquis. Maria-Teresa fires a group of Quichua Indians working in her household, including Huascar, because of their disrespectful behavior. Later the Indians found an Incan king and went to celebrate an ancient ceremony where a virgin bride had to be offered to the Sun King. They choose Maria-Teresa and abduct her. Dick and Maria-Teresa's father's various efforts of saving her go in vain. The two heartbroken men find a ray of hope when Huascar comes to them, offering to help. But can he be trusted? Left with no choice, they put their trust in Huascar, and the rescue began.