Billy Batson is a young boy who transforms into the superhero Shazam by uttering the magic word 'Shazam!' He is granted powers by ancient gods and heroes, making him one of the most powerful beings on Earth. As Shazam, he possesses super strength, speed, flight, and other abilities. Initially overwhelmed by his powers, Billy learns to embrace his role as a hero. His youthful perspective and heart make him a relatable character, while his journey explores themes of family, responsibility, and courage.