The chief of the local village asks for Sheena's help because one of the members of the tribe has been murdered, a very rare occurence in their society. Bob is also robbed and captured while bringing a radium shipment through the jungle. Sheena discovers there is a link to the murder of the local tribesman and cleverly traps the crooks and and recovers the radium.

Roani, an imaginative little native girl with a reputation for concocting stories, skips school to be with Sheena, her idol. She pretend to be a lost orphan but Sheena learns the truth she asks Bob and his client, Gonzales, to take her back to the mission. There the girl learns that Gonzales plans to murder a kindly priest but no one believes her because she tells so many stories. She helps Sheena foil the plan and save the priest's life.