SpongeBob SquarePants

Plankton's Pet

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Episode Information
Season №: 9
Episode №: 186b
Airdate: January 19, 2013 (USA)
March 12, 2016 (Canada)
Sister episode(s): "Safe Deposit Krabs"
Writer(s): Marc Ceccarelli
Luke Brookshier
Mr. Lawrence
Supervising Producer: Paul Tibbitt
Storyboard: Marc Ceccarelli
Luke Brookshier
Animation: Alan Smart
Tom Yasumi
Creative: Vincent Waller
See all credits for this episode.
Previous: "Safe Deposit Krabs"
Next: "Don't Look Now"
List of episodes

"Plankton's Pet" is a SpongeBob SquarePants episode from season nine. In this episode, After another failed attempt for the formula, Plankton decides that he wants a pet to help him.



It begins in the Krusty Krab where a man gets a Krabby Patty, but then a baby comes and takes the Krabby Patty. Everyone thought it was cute, thinking it was a real baby, but Mr. Krabs was able to see Plankton inside the baby. Mr. Krabs started beating him up, but because everybody still thought it was a real baby, they were all outraged. Then Mr. Krabs ripped off the head revealing Plankton inside a baby robot. Mr. Krabs put the head back on and launched him back to the Chum Bucket and Karen then took off the diaper and put it in the trash where Plankton walks out. Karen told him that he should get a pet and SpongeBob, who just happened to hear their conversation, decided to help him look for a pet. At the animal shelter, Plankton sees a guard worm, an old gross snail, and even Patrick. Plankton almost gets swallowed by a pet. Then an amoeba saves his life. Plankton chooses the amoeba and decides to call him Spot.
Plankton's Pet
At the Chum Bucket Plankton teaches Spot some tricks like stay, sit, and roll over. Then he teaches him how to steal a Krabby Patty. Plankton wasn't finished talking when Spot left to the Krusty Krab unseen to get a Krabby Patty. When Spot comes back, Plankton is rapt, thinking he finally won but is then enraged when Spot eats the krabby patty in one bite. He punishes Spot by tying his leash to the mailbox. Seconds later, Plankton feels bad, but when he runs back outside he finds Spot's leash, with no amoeba to be seen. Plankton then goes out to find him, with SpongeBob's help. Soon they stumble upon the shelter, then go inside. It is very dark inside so SpongeBob tries to find the light switch. There are 2 switches, so Spongebob turns on both. One turns on the lights, and the other opened the pens. The guard worm, sea monkey, and sea urchin all chase SpongeBob and Plankton. When they lose the animals, Plankton realizes Spot had been on his optical cornea (his eye) the whole time. The other pets then find Plankton and SpongeBob again so Spot tries to scare them off. The animals laugh at Spot because he's so small but then he grows about a hundred times bigger and easily scares the animals away. Plankton then decides he is going to keep Spot and was sorry he yelled at him. 



 ) Associated production music
 ) Original music
 ) SpongeBob music

  ? - Sage Guyton and Jeremy Wakefield [title card]
  ? [baby appears and takes a Krabby Patty]
  Red Alert - Harry Bluestone, Emil Cadkin [the baby's really Plankton in disguise]
  Cellar Search - Philippe Pares ["Stop right there!"]
  ? - Jeremy Wakefield ["I'll always be one step... ahead."]
  Dramatic Impact 2 - Ivor Slaney [Krabs is beat up]
  ? - Jeremy Wakefield [baby cries]
  ? ["Stop patronizing me."]
  ? - Sage Guyton and Jeremy Wakefield [animal shelter]
  Drama Link (b) - Hubert Clifford [tongue grabs Plankton]
  Glory Road - Sam Fonteyn [Plankton is saved by Spot]
  Cute and Lovable - Phillip Green ["Hey there, little guy!"]
  ? - Sage Guyton and Jeremy Wakefield [Spot doing tricks]
  ? [playing fetch]
  Fates - Gregor F. Narholz [Spot is squished]
  ? ["Nice rebound, Spot!"]
  ? - Nicolas Carr [transition to next scene]
  Dachshund Walk - John Fox, Mac Prindy [Spot brings Plankton a Krabby Patty]
  Tympup A - Sammy Burdson, John Charles Fiddy ["Holy plot twist!"]
  Hawaiian Sting - Nicolas Carr ["Holy plot twist!"]
  ? ["It's a miracle!"]
  Hop and Skip - Phillip Green [Spot eats the Krabby Patty]
  Great Moments - Gregor F. Narholz ["Spot, I'm sorry."]
  Tragic Bridge 4 - Phillip Green [Spot is missing]
  Tragic Embrace - Pavel Orm ["Spot, come back!"]
  ? - Jeremy Wakefield ["Aww..."]
  Tragic Embrace - Pavel Orm [Plankton looking for Spot]
  Adventure Fanfare 1 - Harry Bluestone, Emil Cadkin ["Let's find your pet."]
  Agitation - Phillip Green [SpongeBob asking people if they've seen Spot]
  ? - Jeremy Wakefield ["I've been looking everywhere for this!"]
  ? [SpongeBob and Plankton go to the animal shelter]
  Killer on the Run A - Gregor F. Narholz [animals are loose]
  ? - Nicolas Carr ["A double what?"]
  Great Moments - Gregor F. Narholz [Plankton finds Spot]
  From the Dead - Ronald Hanmer [animals approaching SpongeBob and Plankton]
  Dramatic Cue (g) - Ronald Hanmer [Spot barks at the animals]
  SpongeBob Theme - Nicolas Carr, Sage Guyton and Jeremy Wakefield [ending]


This episode was released on iTunes on May 25, 2013.


This episode received praise by various people on the internet.


  • Before this episode premiered, there was a marathon of pet episodes including Have You Seen This Snail, The Thing, Wormy, Dumped, Pet or Pests, and others.
  • In the title card, a picture of an amoeba can be seen, which implies the appearance of Spot in the episode.
  • It is unknown how Patrick got in the Animal Shelter, although it might be because of his appearance in Grooming Gary when he is shown as SpongeBob's pet.
  • This episode was paired with Gary in Love when it premiered.
  • Running Gag: Fish going "Awww!" to Plankton.
  • SpongeBob mentioned he got Gary from the animal shelter. This is true, because in Treats!, Gary showed SpongeBob a baby picture of him, and SpongeBob claims it was when he got him from the pound.
  • It is unknown if Spot will be a permanent part of the SpongeBob series.
  • This episode makes the show the longest on Nickelodeon because even though it's the 186th in production order it aired as 184, beating out All That's 183 episode run.
  • Plankton breaks the fourth wall in this episode by saying "Holy Plot Twist!" when Spot got the Krabby Patty.
  • There's an episode of Phineas and Ferb called, "Spa Day", that is outwardly similar to this one. In the mentioned episode, the People of Danville were going "Awww!" which made Doofensmirtz say, "Don't you people have jobs?" which was similar to the People of Bikini Bottom going "Awww!" and Plankton saying the same thing.
  • When Plankton takes Spot for a walk, he tires over walking a long distance in comparison to his height. Yet, when he ties Spot to the mailbox post, he does not tire from the walk to and from the mailbox post. In fact, he even makes both the trips in record time for his size.
  • When Spot multiplies into a large organism, this is through a process of cellular division known as mitosis, where a cell makes a replication, or clone, of itself.
  • Plankton referenced the episode Free Samples, when he said he couldn't even give Chum away.
  • When SpongeBob said Gary lost him, he might've been referencing to Have You Seen This Snail?.
  • In Greece this episode aired in June 28, 2013.
  • The Ameoba on the title card looks like the old Nickelodeon logo.
  • In Hebrew version of this episode, there was no words on title card.


  • When SpongeBob flips the switch that opens the animal pens, the sea urchin was in the third pen. Then when Spot scares the animals back into their pens, the sea urchin goes into the second pen. It is possible that they were too scared to get back in their own pens.
  • Right as Plankton (who was still in his baby disguse) was about to land in front of the Chum Bucket after being kicked out of the Krusty Krab by Mr. Krabs, the road that usually connects to the Krusty Krab isn't there.

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