"Plankton's Army" (originally promoted as "Plankton's Revenge") is the second segment of the 58th episode of SpongeBob SquarePants (though when the episode first aired, this was presented as the first segment due to being advertised as a "special" episode).


At the Krusty Krab, Mr. Krabs announces that it is the 25th anniversary of the first time Plankton attempted to steal his secret recipe. Suddenly, a robot enters the restaurant, and Mr. Krabs pushes his employees aside, saying that he will handle this one. However, the robot orders coral bits instead of a Krabby Patty, pays for them and leaves. Mr. Krabs is surprised that the robot wasn't Plankton, but Plankton then suddenly jumps out of the dollar bill the robot gave him. However, Plankton hadn't planned what to do next, not thinking he'd get this far, and is simply flushed down the toilet by Mr. Krabs.

Plankton returns to the Chum Bucket, sulking to his computer wife Karen about his failures. She then suggests to hire some henchmen to help him. He first goes to the Salty Spitoon, but the thugs beat him up. He then realizes that he has thousands of inbred relatives across the sea, and invites them all to come to the Chum Bucket, thinking they will all be evil geniuses like himself. However, when they arrive, he finds out they are all inbred rednecks, and comments that he's "been away from home longer than (he) thought." He calls them to a meeting and gets them to agree to his plan in exchange for root beer. Plankton's first name is here revealed to be Sheldon, which Karen finds hysterical.

Plankton's army then attacks the Krusty Krab, tying up Mr. Krabs and Squidward in a toilet. The Planktons open the safe containing the Krabby Patty secret recipe. Before Plankton reads the recipe, Mr. Krabs pleads him not to read it, saying "There some things this world weren't meant to be seen by mortal eyes!". Plankton reads it anyway. The ingredients turn out to be:

  • A pinch of salt
  • Three teaspoons of chopped onions
  • A cup of love
  • Four pounds of grounded plankton

Plankton is horrified by the revelation of that last ingredient and runs away. The other plankton read it and run (except for Clem, who can't read, but Mr. Krabs orders him to get out). Mr. Krabs and Squidward manage to escape from the toilet, and SpongeBob returns from his task, and asks what happened. Squidward asks if a Krabby Patty is actually made of plankton, Mr. Krabs explains that the recipe that Plankton read is fake, and the real one is hidden somewhere "No one, not even Plankton, would ever figure out". Squidward then guesses that it is under Mr. Krabs' mattress, and Mr. Krabs runs to his house, yelling "Curse you, Squidward!"

Home video releases

  • SpongeBob SquarePants: SpongeBob Goes Prehistoric
  • SpongeBob SquarePants: Absorbing Favorites
  • SpongeBob SquarePants: The Complete 3rd Season
  • SpongeBob SquarePants: The First 100 Episodes


  • SpongeBob only appears at the very beginning and at the very end of this episode. This makes this one of the smallest amounts of screentime he has had in any episode, similar to "Rise and Shine" and "New Leaf".
  • Plankton's family shows much resemblance to the Trench Billies.
  • It should be noted that when Plankton was talking about how many other Planktons Mr. Krabs could handle, he was saying the number used in the power of ten in scientific notation.
  • This episode oddly isn't mentioned in Comcast cable guides; only "Missing Identity" was.
  • Plankton says that "United, the Plankton family could be a real pain in the fanny!" However, closed captions say "belly" instead of "fanny." Though this may be in the UK because of the term "fanny" meaning something different like butt.
  • Before it aired, many people mistook this episode to be a special or even a movie due to the nature of its advertisements.
  • The robot who purchases the Coral Bits has a revolving light over its "eyes", much like the Cylons from Battlestar Galactica.
  • Plankton's past attempts at stealing the formula shown in this episode include:
    • Asking nicely; Mr. Krabs said "no."
    • Wearing a cockroach costume; Mr. Krabs stepped on him.
    • Drinking a potion that turned him into a cockroach; Mr. Krabs stepped on him.
    • Protesting to Krabs that he is not a cockroach on a picket sign ("civil disobedience"); Krabs stepped on him again.
  • "Billy Billy Bo Billy Banana Fanna Fo Filly" is similar to a song called "The Name Game".
  • This episode is one of the rare occasions where Plankton is squashed under his wife Karen (under her robotic hand).
  • Running gag: Karen showing on her screen "SHELDON."
  • After Plankton got flushed from the Krusty Krab, he came out of the manhole directly between the Chum Bucket and the Krusty Krab. This is the only time this manhole is seen.
  • Instead of saying he can't read, Clem said "For what?" in Indonesia.


  • In Mr. Krabs' office the walls were made out of wood, but when Mr. Krabs said, "I warned ya", the walls changed.
  • When Mr. Krabs says that "today is the 25th anniversary of when Plankton tried to steal me secret Krabby Patty Recipe", the door to Mr. Krabs' office is shown. But when the robot shows up, the door is gone. It then reappears when Mr. Krabs and Squidward walk outside.
  • When Plankton ran from the Krusty Krab back to the Chum Bucket, the road is much more curved and longer than usual.
  • Plankton is horrified that the fake recipe calls for ground-up plankton. Ironically, since chum is ground-up fish, guts, and blood, that's what Plankton's been serving his customers (most of whom are fish).
  • SpongeBob isn't victimized by swarm of Planktons that take over the Krusty Krab completely.
  • Outside the Krusty Krab there are millions of Planktons surrounding the restaurant, but after Plankton retreats to Chum Bucket, there are fewer of them.

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