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

Rip infiltrates Quail's museum opening to steal the Holy Grail and bring Bella back to life, and Saltine goes on a risky mission to find out the truth about the coveted artifact.

Rip learns he may be able to exorcise the Antichrist from Bella if he brings her to the site of Bella’s happiest memory, so he and Saltine take the Antichrist on a worldwide journey through the past.