It's the Grand Opening of Quail Eegan's new museum — and Rip Digman will stop at nothing to infiltrate it. Meanwhile, Saltine must delve into the seedy underbelly of the Arky world in order to learn the truth about a dangerous artefact.

Rip journeys to the distant Puffland in pursuit of the Holy Grail to resurrect his late wife Bella, but his solo mission goes awry when the king arranges for Rip to marry his daughter.

Rip goes on an undercover mission to find a long-lost sonnet from Shakespeare's legendary oeuvre, but things get sticky when he crosses paths with a charming thespian.

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 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.

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, 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.

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.