Separated from his mother in childhood, the teenager Billy (Asher Angel) moved from one family to another, but was determined to return to his mother. When he once again lived in a large family of adopted children, he accidentally came to an unknown area and became the heir of an ancient wizard. When he shouted "Shazam", he would instantly become a superhero with a strong adult body, Thunder Shazam (Zachary Levi). Billy was very excited and shared this joy with his new brother, Freddy (Jack Dylan Grazer), who had a leg disability. The two uploaded videos showing various superpowers to the Internet and spread them everywhere. As a result, the sinister Dr. Thaddeus Sivana (Mark Strong) came to the door. Sivana missed the chance to become Shazam in his childhood. He was disliked by his father and brothers, so he sold his soul to the seven deadly sins. He even tried to destroy Shazam, the Thunderbolt that he longed for and hated...