10-year-old Billy Batson shouts a single word and, with lightning bolts flashing, he transforms into Shazam!, a full-fledged adult Super Hero. It doesn't take long for Superman, Wonder Woman, Batman and the rest of the Justice League to take notice and invite the earnest do-gooder to join the team. But to become a member, Billy must reveal his true identity. While fighting off the evil Mr. Mind and Black Adam, Billy learns that he must trust others - and that nothing creates trust like helping those in need.