Captain Marvel, Jr. [Freddy Freeman]; Ali; The Sultan; Fatima (Sultan's daughter); Genie of the Lamp (villain); Abdul the Merchant (villain)
Freddy sees an ad in the newspaper requesting the help of Captain Marvel Jr., and when he visits the man who placed the ad, he is told that he is requested to go back to Arabia with him. This man, Ali, is in love with a sultan's daughter, but there is another suitor as well, and her hand in marriage goes to the person bringing her the greatest magic gift.
Captain Marvel, Jr. [Freddy Freeman]; Otto Van Dorn; Mrs. Van Dorn; Graybeard (villain, ancient crimelord); Slippery Elmer (villain)
Captain Marvel Jr. speedily takes the wife of Otto Van Dorn to the hospital where she is diagnosed to be suffering from amnesia, and she can't remember anything that has happened in the last 50 years. This is good news to Graybeard, who is rotting in prison, but escapes and goes after the famed Van Dorn Necklace.
Captain Marvel Jr. [Freddy Freeman]; Spawn the Magician (villain)
Every week, the magician, Spawn, performs his acts of magic on the waterfront, but Captain Marvel Jr. notices people under the influence of opium committing crimes there as well, and believes that there is a connection between the two.