Shazam! won't be straying too far from it's original source. In the film, Billy Batson is a 14-year-old foster kid who is granted powers by an ancient wizard. By calling out the word "SHAZAM," he's able to transform into an adult super hero with godlike powers. The official synopsis from Warner Bros. states that, "Shazam sets out to test the limits of his abilities with the joyful recklessness of a child. But he'll need to master these powers quickly in order to fight the deadly forces of evil controlled by Dr. Thaddeus Sivana."