The Potter family has just moved to a rented apartment in San Francisco. Harry Potter Sr. and his wife Anne are bringing the packages to the apartment and their son Harry Jr. and their little daughter Wendy Anne stays on the sidewalk. Wendy goes to the laundry room, she meets the wicked troll Torok that uses his magic ring to possess Wendy and to use her form to transform the dwellers and their apartment into other trolls and his kingdom. Harry Jr. feels that something is wrong with his sister and seeks out help with the good witch Eunice St. Clair that lives in the building.
Best friends Karl and Miles stumble upon a remote cabin, believing it's their chance to strike it rich. However, their plans are thwarted by the looming apocalypse, creating a comedic and horrific predicament for the duo.
Story follows an out-of-work steel worker as he struggles to provide for his family and avenge his brother's death by fighting in a mixed martial-arts match against a dangerous opponent.
In the tradition of American Pie, Lord of the Rings, and Wet Hot American Summer comes a new instalment in a beloved IP franchise: The Napa Boys are back! In search of wine. In search of women. In search of themselves.