While Francis and company encounter the rest of the Evil Doll Gang on their way to find Pizza Cat, the eponymous cat himself is held hostage in the Sinking World by terrifying monsters —  "humans."

After Nyah'lloween, chaos ensues as Pizza Cat's sudden absence results in fear and mystery.  

Pizza Cat's partner is confronted with a harrowing realization. In the Sinking World, Pizza Cat comes face-to-face with Melinda's mother, the Abyssal King.

In the Sinking World, Melinda quickly declares victory and hurries off to deliver Pizza Cat to her mother, the Abyssal King. In the Floating World, Pizza Cat's partner anxiously waits for his return...

The night of Nyah'lloween arrives. In the midst of treats and tricks, a sinister act begins to unfold.

Francis manages to convince Pizza Cat and Boss Cat to back down, but Boss Cat isn't so inclined to let go of old grudges.

Melinda takes note of the Floating World's strife. Bartholomew isn't as enthusiastic.

It's time to decorate the Dining Hall for Nyah'lloween!

Pizza Cat comes home weary and drenched from the rain.

Pizza Cat has to face his top nemesis in the Floating World—none other than his boss, Nicholas B. "Boss" Cat. What could be the source of their long-lasting strife?

After another late night at the Dining Hall, Francis asks Pizza Cat a difficult question.

Francis starts his first class of the new school year and meets a familiar face...and a potential foe?