To protect a magic talisman from being used for evil, a teenage boy named Billy Batson is given the power to become an adult superhero, Captain Marvel, with a magic word: Shazam!
Professor Bruno Volpi spots some strange paintings on a cliff. He sends for Professor Zovek to help him discover its meaning. Zovek uses his powers to figure out the writings are a warning that a cosmic tragedy is going to happen. Their fears prove to be true when a fire ball falls from the skies causing the ressurrection of the dead as zombies, craving for human flesh.
An outlaw enlists the aid of his pal and a robber gang to pull off a gold heist. When a treacherous gang absconds with the gold, the outlaw and friend set off to capture them.