Disgraced archaeologist Rip Digman attempts to make a comeback with the help of his overachieving student, Saltine, by searching the world for a lost treasure: Hammurabi's Hat.

Rip, Saltine, and Swooper travel to Venice to look for a historical batch of confetti, but find themselves embroiled in a mystery involving secret organizations, curses, gondoliers, and the knife Brutus used to kill Caesar.

When Rip accidentally destroys the Ten Commandments, humanity devolves into chaos, forcing Rip to hunt for the back-up set of commandments; Quail Eegan's new A.I. device gains sentience.

Rip and Saltine attend the Arky Gala, the most glamorous event of the year, where Saltine makes an unlikely friend; their reverie is shattered when the gala is taken hostage by a ragtag group of criminals.

While searching for Amelia Earhart's plane, Rip and the gang find themselves taken aboard a floating airship in the sky, where Swooper finds a great new opportunity; Agatha finds romance; Rip and Saltine find a lot of trouble.

Rip must go undercover to find Shakespeare's "Lost Sonnet," a poem so romantic that hearing it makes people orgasm; Rip finds himself under the spell of a charismatic actor and he will either stick to the mission or get in too deep.