While SpongeBob is making Krabby Patties, he sings a song about how much he loves them, but stops in the middle and, while Squidward is stacking cups (in the form of a triangle), he yells the rest of the song out loud, annoying Miss Gristlepuss and causing Krabby Patties to be banned. Mr. Krabs causes the Krusty Krab to be closed by threatening Ms. Gristle Puss with a French fry strainer and calling her a disgusting old prune. Meanwhile, Plankton at first thinks Mr. Krabs changed the name to "The Closed Krab," but soon figured out he could take advantage of the moment and went out to celebrate. Mr. Krabs's archenemy soon discovered in surprise that the Krusty Krab has secretly been reopened at SpongeBob's Pineapple. He threatens Patrick who was asking Plankton for the "password" while finding that his threats make up the password. While Krabs was checking for cops, he goes to check on SpongeBob who was afraid of becoming arrested for making an illegal product. Mr. Krabs forces SpongeBob to work otherwise there would be weekends off. Plankton discovers Krabs is doing his regular business "under the table" and calls the cops. In the blink of an eye, they arrive to clean up the Krabby Patties and arrest the employees. Miss Gristlepuss trips and a Krabby Patty dropped into her mouth which made her love the sandwich and forgave the Krusty Crew. Again, Plankton's plans failed and he hides inside one of the Krabby Patties only to be eaten by Ms. Gristlepuss.
When SpongeBob is under his table, Mr. Krabs says he'll make SpongeBob take weekends off if he doesn't continue cooking Krabby Patties, but in SB-129, he is off on Sunday, which is the weekend. Mr. Krabs must have meant the entire weekends.
The episode alludes to the Prohibition Era, with the Krabby Patties representing alcohol and the secret Krusty Krab representing a Speakeasy.
Mrs. Gretel Puss's husband strongly resembles Duke Nukem.
Also, Miss Gretel Puss's husband say "Hello, This is Al G.", which sounds like algae.
This is the 100th episode in the series.
Miss Gretel Puss is voiced by SCTV alumna Andrea Martin.
The police can't make a food illegal, as the police only enforce the law. It is the government that makes the laws. And even then it would take some time to get it passed (if it is even passed). While here, it only took one day to pass.
A banner in SpongeBob's house says "Keep it secret. Keep it safe." This is a reference to a line said by Gandalf the Grey in The Lord of the Rings: The Fellowship of the Ring.
When Squidward said "Do you want to 'Secret Size' that for $2 more" is a parody of McDonalds and their policy of allowing their customers to 'Super Size' their meal for more money.
In reality, Miss. Gretel Puss has no power of shutting down the Krusty Krab and banning Krabby Patties only for the reason of it being "Fun and Delicious", even if her husbend is Chief of Police. They must have a better reason like it being poisonous for it being banned. But, if the previous is true, and the KK is still shut down, they can be arrested for false accusations.
When Mrs. Gretelpuss meets Mr. Krabs, his belt is missing. In the next shot, he was wearing his belt.
When SpongeBob is singing his song about Krabby Patties, the patties on the stove disappear.
When Plankton asked Harold and Nat what was going on, he was wearing a suit. When he went up to SpongeBob's door and talked to Patrick, his suit was gone.
When Mr. Krabs went to the cash register to Squidward for misbehaving at Mrs. Gretel Puss and her crew, he was behind the boat and his body was overlapping the register.
When the Secret Krusty Krab was found by cops, SpongeBob and Mr. Krabs are handcuffed, but when Mrs.Gretel Puss accidentally falls down and eats a Krabby Patty, SpongeBob's handcuffs disappear.