A serial in 12 chapters. Tarzan goes to Guatemala to find his lost friend, D'Arnot. On the way he helps Major Matling search Mayan ruins for hidden jewels and an idol containing the formula for a powerful explosive. D'Arnot and the idol are rescued, but the idol falls into the clutches of the explorer Raglan.

Ed Simpson has been raised in an orphanage where he has caused much trouble. He can't stand living there anymore and runs away. On the streets, he finds a friend in newsboy Mike. Mike teaches him how to survive, but inevitably Ed gets hauled into court. The judge sees potential in him and hands him over to be adopted by a young politician.

In Bagdad, Princess Badr al-Budur, the daughter of the Sultan, falls in love with Aladdin, the son of a poor tailor, and rejects the suit of evil alchemist al-Talib, her father's choice. Al-Talib consults his Evil Spirit, who advises him to find the magic lamp hidden in an underground cave. Unable to get it himself, al-Talib hires Aladdin, who secures the lamp but keeps it when he realizes al-Talib's wickedness. With wealth obtained through wishes, Aladdin courts the princess. After the lamp changes hands between al-Talib and Aladdin, al-Talib steals it and abducts the princess to the desert. Aladdin follows with only a gourd of water. Suffering from thirst and exhaustion, Aladdin nearly succumbs, but the horsemen of the Sultan, who learned of his daughter's abduction, ride up and rescue Aladdin.