Quest for the Spear introduces Flynn Carsen (Noah Wyle), who is hired by the Metropolitan Public Library as The Librarian. What Flynn does not realize is that the library has existed for centuries and protects a range of historical and often magical items in a secret section of the library, including The Ark of the Covenant, Pandora's box, and Excalibur. When part of the Spear of Destiny is stolen from the library, Flynn must recover it with the help of Nicole Noone.

Return to King Solomon's Mines begins with Flynn's attending a party at his mother's house, where he meets up with his "Uncle" Jerry, a close friend of his late father. Soon Flynn is on a quest to locate King Solomon's Mines, and along the way he teams up with Emily Davenport, an archaeologist who helps Flynn translate the Akon (aklo algolis) language. When they meet up with Jerry in Kenya, all is not what it seems.

Curse of the Judas Chalice finds Flynn suffering from a series of strange dreams which lead him to New Orleans, where he finds himself in the midst of uncovering a conspiracy that involves the notorious vampire Prince Vlad Dracul. Once again, Flynn must overcome his fears and protect one of the world's most sacred artifacts, the Judas Chalice, or face the consequences of it falling into the wrong hands.