- SpongeBob SquarePants
- Eugene H. Krabs
- Sheldon J. Plankton
- Squidward Tentacles
- Karen Plankton (2 cameos)
- Bogus Business Bureau agents (debut)
- Agent Twirp (debut)
- French Narrator
- Mermaid Man (mentioned)
- Nat Peterson
- Norma Rechid
- Ivy (gray)
- Sheldon (fish)
- Frankie Billy
- Jimmy Gus
- Abigail Marge
- Harold "Bill" Reginald
- Dennis (citizen)
- Debbie Rechid
- Nancy Suzy Fish
- Truck driver
- Medley Fishbowl
- Bogus Business Bureau receptionist (debut)
- Patty Laddie (debut)
- Flankton (debut)
The episode begins at the Krusty Krab, SpongeBob is blowing a trumpet, heralding an important announcement from Mr. Krabs: it is the first annual bun seed counting contest. Anyone who correctly guesses how many seeds are in the jar wins a free Krabby Patty. Several people make guesses, each more ridiculous than the last. The next contestant is Plankton, but before he can guess, Mr. Krabs grabs him by the antennae and takes him outside. Plankton claims it is unfair that he does not get to guess; however, Mr. Krabs says that he can do whatever he pleases and that he knew all Plankton would do is analyze the Krabby Patty to steal his secret formula. Mr. Krabs then chews Plankton up, inflates him, and blows him away, where he splatters onto the door of the Chum Bucket. Plankton calls the Bogus Business Bureau on him, but Mr. Krabs is unconcerned.
At the Krusty Krab, agents burst through the roof along with Agent Twirp, who tells Mr. Krabs he must accept guesses from all customers no matter how "diminutive" or "annoying" they are. Plankton pops out of Twirp's breast pocket, proudly proclaiming he is both. Mr. Krabs is adamant about refusing to let him guess, but when Twirp threatens to close down the Krusty Krab, he reluctantly agrees. Plankton uses technology to scan the jar and guesses: 500,301. Mr. Krabs laughs at him, saying it is actually 500,300 "and none." Agent Twirp interrupts and states that the contest isn't official unless all the seeds be counted, and Mr. Krabs refuses until Twirp once again threatens to close down the Krusty Krab if he does not comply. Mr. Krabs painstakingly counts every single seed from the jar: 500,300. However, SpongeBob notices an uncounted seed in the jar's lid, and Plankton wins.
Desperate to stall, Mr. Krabs makes excuses, but SpongeBob obliviously corrects him. Mr. Krabs says the contest included a free show, which Twirp allows. He constructs a puppet theater and performs a puppet show, but Plankton sees through the delay and continues to demand his Krabby Patty. Mr. Krabs realizes there is nothing else he can do, and sadly tells SpongeBob to prepare what could be his last Krabby Patty. Mr. Krabs has Squidward distract Twirp, giving him time to flush all the buns down the toilet, but a delivery man with buns that SpongeBob ordered thwarts his last-ditch efforts. This time SpongeBob realizes his error in unknowingly helping Plankton. When the Krabby Patty is ready, Plankton wants it "to go," but Mr. Krabs says it must be "dine in." Plankton stuffs the entire patty into his mouth, but Mr. Krabs tells him to swallow it. Once he does, he asks if he can go now, and is thrown out by Mr. Krabs into the Chum Bucket. In the Chum Bucket, Plankton climbs onto an operating table and tells Karen to remove the patty from his stomach right away, even declining anesthetic.
Later, Mr. Krabs and SpongeBob sadly watch the long line at the Chum Bucket. Suddenly, people rush out, sick from patties they say taste like stomach acid, aspirin, and carrots. The rest of the customers flee, and Plankton asks Karen what's going on. She tells him she followed his orders, revealing she focused on his stomach contents, rather than the Krabby Patty's ingredients. Relieved, Mr. Krabs tells SpongeBob to recover the buns he flushed down the toilet and to put the seeds from the jar back onto them. The episode ends with SpongeBob saying "That's my Krabs!" and laughing.
|( ‣ ) Associated production music|
|( • ) Original music|
|( ◦ ) SpongeBob music|
‣ ? [SpongeBob playing horn]
‣ Hot Steel and Slide Licks - Jeremy Wakefield [SpongeBob tied up]
‣ Sailor's Sting 21 - Michael Bolger, Nicolas Carr [bun seed guessing contest]
‣ Salty Krab Jig - Michael Bolger, Nicolas Carr [The contest starts]
‣ Dramatic End [#49] - Harry Bluestone, Emil Cadkin ["You'll pay for this, Krabs!"]
• Hot Steel and Slide Licks (k) - Jeremy Wakefield [Plankton calls the Bogus Business Bureau]
‣ SpongeBob Action Theme - Brad Carow [Bogus Business Bureau arrives]
‣ Furtive Footsteps - Paddy Kingsland ["Are you the proprietor of this establishment?"]
‣ Zelle 501 - Gerhard Trede ["You have to let me guess now, Krabs!"]
‣ The Creature (b) - Gregor F. Narholz [Plankton calculating]
• Hot Steel and Slide Licks (c) - Jeremy Wakefield [Krabs laughs]
‣ Cartoon Sting 4 - "It's not official unless you count them."
• Hot Steel and Slide Licks (f) - Jeremy Wakefield ["Plankton was right."]
‣ Cartoon Sting 4 - "I now command you to give Plankton his prize."
‣ Earl's Revenge - Sage Guyton, Jeremy Wakefield [Krabs preparing for the show]
‣ Toy Piano - Nicolas Carr, Barry Anthony [puppet show]
‣ Enter the Villain - Chris Payne, Paul Rogers ["...by the name of Pla... Flankton!"]
‣ Toy Piano - Nicolas Carr, Barry Anthony ["So one day, when the lad was minding his own business..."]
‣ Hero v. the Villain - Johnny Pearson ["...Flankton took a huge bite out of the laddie's face!"]
‣ ? [harp music]
‣ Dramatic Cue (e) - Ronald Hanmer [Krabs pops the paper bag puppet]
• Hot Steel and Slide Licks (e) - Jeremy Wakefield ["Oh, bravo."]
‣ Sailor's Sting 15 - Michael Bolger, Nicolas Carr ["All right, SpongeBob."]
‣ Sailor's Sting 18 - Michael Bolger, Nicolas Carr [SpongeBob sadly enters the kitchen/SpongeBob cries hardly.]
‣ The Donut Dilemma - Nicolas Carr [Krabs flushes buns down the toilet]
‣ Drama Link (f) - Hubert Clifford ["We're all out of buns!"]
• Hot Steel and Slide Licks (b) - Jeremy Wakefield [bun delivery]
‣ Taps - SpongeBob plays this
• Hot Steel and Slide Licks (i) - Jeremy Wakefield ["Go ahead, wrap that up."]
‣ Lopey Sailor's Jig - Michael Bolger, Nicolas Carr [Plankton swallows the Krabby Patty]
‣ Drama Sting 3 - Steve Marston [Karen cuts the patty out of Plankton]
• Hot Steel and Slide Licks (m) - Jeremy Wakefield [line of customers at Chum Bucket]
‣ Clownfish Capers - Sage Guyton, Jeremy Wakefield [sick customers]
‣ Jovial Pirates Jig - Michael Bolger, Nicolas Carr [ending]
- As of June 18, 2019, The Internet Movie Database (IMDB) gives this episode a rating of 7.3/10 based on 137 ratings by users. TV.com users give this episode a rating of 7.5/10 based on 10 votes.
- This episode marks the first time Plankton is able to eat a Krabby Patty.
- This was Steven Banks' last episode as a writer.
- Although this episode premiered in 2012, it was made in 2011 according to the credits.
- This episode is called "Plankton Eats" on Digiturk.
- This time, failure to obtain the Krabby Patty recipe was Karen's fault. She should have figured out Plankton wanted her to analyze the Krabby Patty and only the Krabby Patty, rather than everything else in his stomach. Otherwise, Plankton would have won for the very first time and stopped stealing the Krabby Patty formula (this would have changed the SpongeBob SquarePants timeline history).
- This episode shows one of Plankton's many launchings that Karen records in "Truth or Square" (although this one doesn't make the highlight reel).
- According to the buttons Plankton presses, the Bogus Business Bureau's phone number is 8918.
- The scene where Mr. Krabs stuffs the buns into a toilet is similar to when Jim and SpongeBob flush Krabby Patties down the toilet in "The Original Fry Cook."
- This episode marks the second time a character says "Flankton" as opposed to "Plankton." The first is in "Free Samples."
- When the Bogus Business Bureau enters the Krusty Krab, the SpongeBob Action Theme plays.
- This episode premiered seven years after The SpongeBob SquarePants Movie book was released, five years after "Can't Swim" premiered, and one year after SpongeBob SquigglePants was released on the Wii.
- This episode premiered during the "Two Whole Weeks of Never Before Seen SpongeBob" event.
- The bun seed counting contest is based on real-life jellybean counting contests. Unlike Mr. Krabs' contest rules, the winner is usually determined by whomever guesses the closest to the actual number, rather than getting the exact number that is in the jar.
- The Bogus Business Bureau is a reference to the Better Business Bureau. The purpose of both organizations is to make sure businesses are not being unfair to customers.
- If one looks closely at the first fish in line at the Chum Bucket, when he turns around when the customer runs out, his eye stays in one place and moves to the other side of his face. When he turns around, the eye makes it to its original state.
- Plankton is on the left side of the chair, but when Squidward walks up, he is suddenly on the right side.
- Just before SpongeBob pulls out his spatula, Mr. Krabs' pupils disappear.
- SpongeBob's hat disappears after Flankton eats the Patty Laddie, but is back on when he is squirted with ketchup.
- In the scene where Mr. Krabs walks toward the Bogus Business Bureau and says "Drat the luck," the Krusty Krab table behind him has a pixelated white outline. This makes the table look like as if it was poorly photoshopped into that scene.
- The tape over Plankton's stomach wound from cutting the Krabby Patty out disappears in his final scene at the end of the episode.
- The lid and SpongeBob's arms disappear when he splits in half, even though they are sticking forward by a fair amount.
- Mr. Krabs adding more rules to the contest.
- SpongeBob unintentionally helping Plankton to get closer of getting the Krabby Patty.