- Eugene H. Krabs
- Pearl Krabs (pictured in a photo)
- Sheldon J. Plankton
- Karen Plankton
- SpongeBob SquarePants
- Squidward Tentacles
- PlanKrab (debut)
- Hairball (debut)
- Administrator Flotsam (cameo)
- Colonel Carper (cameo)
- Bikini Bottomites
Plankton gets a hair sample from Mr. Krabs while he is showering. After Mr. Krabs uses Plankton while showering, he comes back to the Chum Bucket to combine one of the hairs with one of his antennae to create PlanKrab.
PlanKrab has already created a plan to steal the formula and ends up gaining control of the entire restaurant due to his hearty handshake. He uses this handshake on Plankton to trick him and kick him out of the restaurant.
After Mr. Krabs and Plankton see that the Chum Bucket and the Krusty Krab have been combined to become the Krusty Bucket, the two eavesdrop on the restaurant. They get sad after seeing how PlanKrab runs his restaurant, and the two decide to team up to get their restaurants back.
They try several attempts to defeat PlanKrab, but they fail. Eventually, they go to the restaurant to apply for manager. However, PlanKrab makes the two managers of the restrooms.
Plankton and Mr. Krabs get into a brawl in the bathrooms, causing PlanKrab to intervene and get so angry that he splits into two. The split PlanKrabs get into a fight, but Mr. Krabs stops them and tells them to have a clean fight. Before that, he makes the two handshake, causing the two PlanKrabs to melt due to how good their handshakes are.
- PlanKrab giving people his soothing handshake.
- Plankton coughing up hair, frequently followed up by him saying "Hair."
|( ‣ ) Associated production music|
|( • ) Original music|
|( ◦ ) SpongeBob music|
‣ Waikiki Dance - Lionel Wendling [Title card]
‣ Morning from Peer Gynt Suite No. 1 - Edvard Grieg [Opening]
‣ Stool Pigeon - Kenny Graham [Plankton hidden in Mr. Krabs' toothpaste tube]
‣ Bikini Babes [#48] - Eric Spencer [Krabs opens his medicine cabinet]
‣ Fast Steps - Anselm Kreuzer [Krabs uses Plankton as his razor blade]
• Ascending Organ Drama - Nicolas Carr ["Well, if it isn't my thieving husband."]
• What's This - Nicolas Carr [Plankton's mouth full of Krabs' hair]
‣ Hide and Seek C - Laurent Dury [Karen removes the hair from Plankton's mouth]
‣ Planet Xz-3 - Gregor Narholz [Krabs' hair and Plankton's antenna inside the cloning machine]
• Horror House of Wax Retro 2 - Nicolas Carr, Ron Wasserman [Cloning machine is activated]
‣ Approaching Danger - Ronald Hanmer [Clone is created]
• Horror House of Wax Retro 2 - Nicolas Carr, Ron Wasserman [PlanKrab emerges from the cloning machine]
‣ Planet Xz-3 A - Gregor Narholz ["How is this a good thing?"]
‣ My Sweet Baby [#34] - Karin Nobbs [Baby sucking on Plankton]
‣ Planet Xz-3 A - Gregor Narholz ["This is different! Isn't it, PlanKrab, my pretty?"]
‣ Breezing Around - Edward White ["Don't waste your breath, Plankton. I already mapped out the perfect plot to swipe that formuler."]
‣ Planet Xz-3 A - Gregor Narholz [Plankton laughs and coughs]
‣ Happy Links 6-9 - Paul Fenoulhet [Plankton waiting for PlanKrab outside the Krusty Krab]
‣ Happy Links 1-5 - Paul Fenoulhet [Colonel Carper steps on Plankton]
‣ Cool Cats - Max Saunders ["What's the big idea? What have you been doing all this time?"]
‣ A Visit to Aunty - Johnny Hawksworth [PlanKrab is the new owner of the Krusty Krab]
‣ Rue Montmartre - Ludovic Beier [Krabs looking sadly through the window of the Krusty Krab]
‣ Cool Cats - Max Saunders [PlanKrab tells Plankton all it took was a hearty handshake to be the owner of the Krusty Krab]
‣ Heavenly Voices (a) - David Farnon [Plankton gets mesmerized by PlanKrab's hearty handshake]
‣ Ghastly Ghouls - Sean Elder [PlanKrab tells Plankton he's also gonna be the new owner of the Chum Bucket]
‣ Scorched Earth - Trevor Duncan [Plankton lands in Krabs' coffee mug]
‣ Lonely Heart's Club A - David Bell, Otto Sieben [Krabs and Plankton crying]
‣ ? ["I... I... I don't know what happened..."]
‣ ? ["...but that was some handshake of his, huh?"]
‣ ? ["Snap out of the handshake. It's a trick, Krabs!"]
‣ Duel to the Death - Ronald Hanmer [The Krusty Krab becomes The Krusty Bucket]
• Horror House of Wax Retro 2 - Nicolas Carr, Ron Wasserman [Krabs and Plankton scream]
‣ Impossible Mission (a) - Magnum Opus [Krabs and Plankton peek into the Krusty Bucket]
• Mission Improbable - Nicolas Carr, Barry Anthony ["Say, this Krabby Patty tastes even better than usual."]
‣ Kitsch Comedy - Peter Jeffries [SpongeBob tells Nat each patty now has a pinch of chum added]
‣ Bridge 3 - Wilfred Burns [PlanKrab shakes SpongeBob's hand]
‣ ? [SpongeBob faints]
‣ Lonely Violin - Dick Stephen Walter ["Me boy-o?"]
‣ Finger of Suspicion - Max Saunders [Krabs and Plankton realize they have to work together to get their restaurants back]
• Salty Krab Jig - Michael Bolger, Nicolas Carr [PlanKrab takes out the trash]
‣ Duel to the Death - Ronald Hanmer [Krabs and Plankton beat up PlanKrab]
‣ Anvil Chorus - Daryl Griffith, Giuseppe Verdi [Krabs and Plankton have the key of the Krusty Bucket]
• Happy Sponge Chase Vibes - Nicolas Carr [PlanKrab takes the key back]
‣ Screw on the Loose - Tony Lowry [Krabs and Plankton trying to take PlanKrab's customers]
‣ Dramatic Encounter - Gregor Narholz [Truck runs over Krabs and Plankton]
‣ Hawaiian Beach - Peter Dennis ["All right, all right. I can't go any lower, Eugene. Please make it stop!"]
• The Krusty Krab Jig - Michael Bolger, Nicolas Carr [Krabs and Plankton in PlanKrab's office]
‣ Rue Blanche - Ludovic Beier [PlanKrab hires Krabs and Plankton as his new managers]
‣ Bell Hop-Short Version A - John Shakespeare [Krabs and Plankton got hired as bathroom attendants]
• Clownfish Capers - Sage Guyton, Jeremy Wakefield [Krabs and Plankton fighting in the bathroom]
‣ Heavenly Voices (b) - David Farnon [PlanKrab shakes Squidward's hand, causing him faint]
‣ Brickbat (Build-Up) - Laurie Johnson ["Two guys fighting! Toilet paper everywhere!"]
‣ Apples and Pears - Bruce Campbell [Krabs and Plankton blaming each other for destroying the bathroom]
‣ Disruption - Max Saunders [PlanKrab separates into two clones]
‣ ? ["All right, you clones, I want a clean fight, no rough stuff."]
‣ Drama Link (b) - Hubert Clifford ["But first, you gotta shake hands."]
‣ Heavenly Voices (a) - David Farnon [Clones shake hands with each other, and they melt]
• Happy Sponge Chase Vibes - Nicolas Carr [Ending]
- This episode is available on the SpongeBob SquarePants Vol. 20 and The Complete Twelfth Season DVDs.
- This episode might've been inspired by a promo from Nick Extra.
- This episode marks the first usage of "Happy Sponge Chase Vibes" since "Back to the Past."
- This episode marks the first time since "Back to the Past" that the track "Horror House of Wax Retro 2" has been used.
- PlanKrab's Krabby Patty features a pinch of chum, something the original Krabby Patty formula had as stated in "Friend or Foe."
- Promotions for this episode have alternatively titled it "SpongeBob Meets PlanKrab."
- This episode was paired up with "Karen's Baby" during the original American airing, but has since been re-airing with "Squid's on a Bus."
- Colonel Carper from "Hello Bikini Bottom!" has a cameo appearance in this episode, as he steps on Plankton while the latter was waiting for PlanKrab to deliver the secret formula.
- This episode premiered on the same day as the 2019 Kids' Choice Sports.
- The scene where Plankton tries to flush Mr. Krabs down a toilet while they're fighting in the restroom is cut in the UK because kids might try to imitate it.Despite this, both Plankton and Mr. Krabs have been shown trying to flush each other down toilets in "Plankton's Army" and that episode didn't get censored at all in the UK.
- In Australia and New Zealand, this episode was originally going to air on August 8, 2019, for an event called Animated August, but was replaced by "Sandy's Nutty Nieces," and pushed it to April 23, 2020.
- This is the third time Mr. Krabs and Plankton team up against a foe. The first was in "Best Frenemies" and the second was in "The Other Patty."
- A clip from "Plankton's Old Chum" was used in a promo for this episode.
- Plankton hides inside a tube of Krust toothpaste, which is an allusion to the real-life toothpaste brand Crest.
- This also appears in "Blackened Sponge."
- Mr. Krabs's line "Well, here's another fine mess you've gotten us into!," references the Laurel and Hardy shorts, wherein Oliver Hardy would say the same phrase to Stan Laurel.
- After Red PlanKrab and Green PlanKrab melted from doing the soothing handshake, both hands switches places in the next scene.
- In the French dub, the opening credits are taken from its sister episode "Squid's on a Bus."
- When Administrator Flotsam says, "Hey, I'm trying to read!," his lip-syncing does not match his dialogue.