During the semi-final basketball game, the cheerleaders promise them an orgy if they win. The boys do so. After the game, they are led to one of the girls' homes, and everyone strips down to their underwear and jumps in a swimming pool. In the pool, the girls throw their underwear out. The boys do likewise, and swim toward the girls. Soon, but too late, they realize the girls are clothed after all and wind up parading nude before the clothed girls and a home movie camera.
Porky now owns a riverboat with a casino and strip club. According to Brian, Porky is extorting money from Coach Goodenough because he owes money to him. The gang decide to go to the boat to take pictures of the illegal casino to give to the D.A. During this time, Meat runs into Porky's sex-crazed daughter, Blossom, who forces herself on him. The boys' plan fails because Porky catches them in the act and is about to kill them. But when they mention the State Championship game, he realizes that they could help him out by throwing the game so he can bet against them.
Meanwhile, Meat has a problem with cutting up dead animals. The gang goes to Miss Webster's apartment to get a copy of the final exam. They discover her and Mr. Dobish, the School Guidance Counselor, having rather kinky extramarital relations.
A letter is written to Ms. Balbricker arranging a rendezvous at a motel with an old boyfriend of hers, while Pee Wee is enticed to the same motel room by the promise of a night of passion with a beautiful Swedish exchange student. Tommy tricks Pee Wee into going to another location while he heads to the motel room. Ms. Balbricker arrives first followed by Tommy, and they are horrified to find themselves unclothed and in bed with each other. To make up for their prank on Ms. Balbricker, the gang contacts her old boyfriend and actually gets them together.
During the final game, Meat is benched because Miss Webster intentionally failed him. She discovers the blackmail photos and a note, causing her to change her mind. The second half resulted in a victory for Angel Beach while Porky is outraged. Blossom tells him that Meat is her boyfriend and they "went all the way", infuriating him even more. He then suggests to his two subordinates that Meat and Blossom be married.
During the senior prom, Meat is abducted by Porky and his men. The gang decide that this is the last straw and go after them. Just as the wedding is about to start, the power goes out and Meat is liberated by Billy and Brian. Meanwhile, Porky's boat is chasing the guys in their rowboat and they are headed for the drawbridge. After the rowboat gets through, Pee Wee lowers the bridge, resulting in the destruction of Porky's boat.
At graduation, the guys trick Pee Wee into taking off all his clothes, except the graduation gown. As he's about to get his diploma, Principal Carter steps on the gown, causing it to come off and reveal Pee Wee in his nudity, just as he dreamed at the beginning of the film.Dan Monahan as Edward "Pee Wee" Morris
Mark Herrier as Billy McCarty
Wyatt Knight as Tommy Turner
Kaki Hunter as Wendy Williams
Tony Ganios as Anthony "Meat" Tuperello
Scott Colomby as Brian Schwartz
Nancy Parsons as Ms. Beulah Balbricker
Eric Christmas as Mr. Carter
Chuck Mitchell as Porky
Kimberly Evenson as Inga
Nancy Hassinger as Pee Wee's Grandmother
Rose McVeigh as Miss Webster
Wendy Feign as Blossom
Fred Buch as Mr. Dobish
Ilse Earl as Mrs. Morris
Bill Hindman as Coach Goodenough
Ron Campbell as Crutcher
Mal Jones as Bridge Guard
The film received negative reviews from critics, with review aggregator Rotten Tomatoes gives the film a score of 27% based on reviews from 11 critics. As with the other Porky's films, Porky's Revenge! was criticized for being long on sex and short on plot. Another criticism was that the actors simply looked too old to convincingly still be playing high school students.
The movie was nominated for a Stinkers Bad Movie Awards for Worst Picture.
The third film was the smallest grossing film of the franchise with $20,518,905, a substantial drop from the first film's box office of $105,500,000.
Porky's Revenge! soundtrack was released in 1985. Produced and assembled by Dave Edmunds, the soundtrack features new material from a wide spectrum of well-established rock & roll musicians, including Jeff Beck, George Harrison, Carl Perkins, Willie Nelson and Robert Plant & Phil Collins (under "The Crawling King Snakes" moniker), as well as then up-and-comers The Fabulous Thunderbirds. Besides George Harrison's recording of a previously unreleased Bob Dylan song ("I Don't Want to Do It") and Dave Edmunds' "High School Nights" and Porky's Revenge! theme music, the album consists of newly recorded versions of classic rock & roll tunes (sometimes by their original author, in the case of Carl Perkins). Stephen Thomas Erlewine of AllMusic called it "far more fun than the accompanying film" and said, although disliking some of the '80s production flourishes, "it's far better to dwell on the fact that a third-rate sequel like Porky's Revenge! could produce a soundtrack this good, because that is a mystery for the ages."
"High School Nights" b/w "Porky's Revenge" and "Do You Want to Dance?" b/w "I Don't Want to Do It" were released as singles.