Richard is seen loading the car while Nicole tells the children to behave for Granny Jojo. Gumball says he does not want Granny Jojo to kiss him on the cheek, but Nicole says he will let her do it anyway. Gumball questions the specialness of getting kissed on the cheek while watching Nicole and Richard drive away quickly to get away from Jojo.
Granny Jojo steps off the bus with her luggage, puts on lipstick in a menacing way and kisses Anais and Darwin on the cheek. As she gives Anais her bags, Gumball slowly walks over to her for his kiss on the cheek. Just then, his name is called, causing him to turn his head and receive a kiss on the lips. Because of this, Gumball goes into a state of shock.
Darwin tries to convince Gumball to go to his "happy place," which he does not have. Gumball asks Darwin what his happy place is, with Darwin stating that "everything is his happy place." Darwin then takes a terrified Gumball out around the scary block. Gumball, still unable to forget Jojo's kiss (the grumpy old men, the ice cream, and the butterflies all remind him of it), has a mental breakdown as a squirrel tells him to find his "happy place." He yells at it during his emotional collapse, resulting in all three crying. The shot goes back to Gumball, Darwin, Anais, and Granny Jojo eating dinner. Gumball notices everyone's mouth puckering. Soon, he sees it in his mush, and the food turns into a monstrous form that chases Gumball to his room. Gumball wakes up, but the living meal comes back beside his bed. Gumball wakes up for real, where Darwin comes up with a plan to help him: trauma therapy.
The scene changes to the school race track. Gumball doubts this plan, but Darwin reassures him by slapping him on the cheek. Darwin makes Gumball run, climb up a rope over a frame, and jump the Leap of Filth, which Gumball mistakes for the Leap of Faith due to Darwin's description of it. Darwin asks him if he had forgotten about the kiss. Gumball had not forgotten. Trying again, Darwin makes Gumball go into the Shower of Slime. Gumball is asked if he had forgotten about the kiss, which he had, only to have had Darwin remind him by accident. Darwin makes Gumball go to the Sweaty Cheese trial, then through the Sounds of Suffering. Gumball had not forgotten yet. Darwin informs Gumball that he must pass the last and worst level, (consisting of Gumball getting stuck in between Hector's toes and getting toe jam all over him), which finally makes Gumball forget the kiss.
In the scene at the house, Anais finally pulls Granny Jojo's suitcase upstairs, but Granny Jojo tells her to bring it downstairs, as she will leave at any minute. Out of frustration, Anais throws the suitcase out the window onto the lawn.
Gumball, who had just found his happy place, tries to give Granny Jojo a kiss. However, he is distracted by Anais, which causes Gumball to turn his head and get kissed in the mouth again, causing him to go into another state of shock, ending the episode.
[The episode starts with Richard struggling with some luggage as he goes down the stairs]
Richard: We should... really get an escalator!
Nicole: I told you, I already asked Santa.
Nicole: Now, kids, while we're gone, I want you to do what you Granny Jojo tells you.
Gumball and Anais: Yes, Mom!
Darwin: Yes, Mrs. Mom!
Nicole: Richard, those go in the trunk.
Richard: Huh? What does it look like I'm doing?
Nicole: That's the gas tank!
[Gumball, Darwin and Anais laugh]
Nicole: Stop laughing at your father, he tries very hard. [Checks on Richard again] That's the glove box!
[Gumball, Darwin and Anais laugh again]
Gumball: Mom, I've been talking it over with Darwin, and I think I'm old enough not to have Granny Jojo kiss me on the cheek anymore.
Nicole: Why don't you want your Granny Jojo to kiss you on the cheek?
Gumball: I'm just not into the whole kissing on the cheek thing.
Nicole: But she's your Granny Jojo.
Gumball: So? Can't we just...shake hands?
Nicole: She's your grandmother and you are going to let her kiss you on the cheek! [Walks out of house] Between that and her TV programs that's all she has left these days...
Darwin: I like getting kissed of the cheek. It makes me feel special!
Anais: He's right, Gumball, it's not the end of the world.
Gumball: Well, if getting kissed on the cheek is so great, how come those two always take off before Granny Jojo arrives?
[Richard struggles with getting the suitcase in the trunk of the car]
Nicole: Hurry, Richard, she'll be here any minute!
Richard: I know, I know!
Nicole: Richard, her bus!
[Richard jumps into the trunk and Nicole drives off. Granny Jojo alights from the bus, scene zooms into her applying lipstick]
Anais: Granny Jojo!
GrannyJojo: Hello, dear. [kisses Anais on the cheek] Get my bags, would ya?
[Anais goes to get them]
Darwin: Granny Jojo!
GrannyJojo: Hello, walking fish. [kisses Darwin on the cheek] Where's the blue one?
[Gumball miserably approaches her]
Gumball: Here I am.
GrannyJojo: Say my name.
Anais: Come on, Gumball, just get it over with.
Gumball: Well, it's easy for you-- [gets kissed on the lips]
[Gumball gasps and his pupils shatter]
GrannyJojo: Hurry up with those bags, Anais; I don't wanna miss the Sheriff McGruff marathon. He's the only man of justice, in a world of deceit.
Darwin: [To Gumball, who is still in shock] See! That wasn't so bad. Gumball? Gumball, are you okay? [Gumball squeaks. Darwin pushes Gumball into the house] Anais?
Anais: [Struggling with the suitcase] Kinda busy here!
Darwin: Something's wrong with Gumball.
Gumball: [In a high-pitched voice] She-she... she kissed me! She kissed me!
Anais: She kisses all of us, get over it! Geez, what's in this thing? Bowling balls? [pushes bag up the stairs]
Darwin: You okay, buddy?
Anais: Aah, look out!
[Bag falls and hits Gumball, showering him with Granny Jojo's garments. Gumball removes her dentures from his mouth, looks at them, and screams]
GrannyJojo: Anais, you be careful with Granny Jojo's bag!
Anais: Yes, Granny Jojo. Darwin, you get me in trouble, take care of Gumball.
Darwin: Hmm... Hey I know, let's go to your happy place.
Gumball: My happy place?
Darwin: Yeah, you know, that special place you go to when you feel bad?
Gumball: I don't have a happy place. Where's your happy place?
Darwin: Everywhere's my happy place. [Opens door]
[Scene changes to outside]
Darwin: Hi, mailbox!
Mailbox: Hi, Darwin!
Darwin: Hi, tree!
Tree: Hey, Darwin!
Darwin: Hey, dangerous criminal!
SalLeftThumb: What? Oh, heya Darwin!
[He breaks a car window]
Darwin: Hi, two rats eating a kebab!
Rats: Hey, Darwin!
Darwin: Hi, hundred dollar bill!
Hundred Dollar Bill: Hello, Darwin!
Darwin: Hi, grumpy old guys!
Marvin: Hey, I hear your Grandma's in town!
Donald: Give her a big kiss from me!
Gumball: [frightened] Find your happy place, find your happy place.
[At an ice cream truck, Darwin pays for an ice cream cone and gives it to Gumball]
Darwin: Here you go!
[He prepares to lick it, but a face appears in it and makes a kissy face. Gumball screams and drops the ice cream]
Darwin: [in a hypnotizing voice] Find your happy place, find your... [butterfly lands on Darwin's fin] Oh, hey look! A butterfly!
Gumball: Whoaaa, pretty...
[Another butterfly lands sideways on Darwin's fin, underneath the other butterfly, making it look like a face. The second butterfly flutters its wings, making it look like the face is talking]
Voice: Give Granny Jojo a kiss!
[Gumball screams and shields himself]
Gumball: Happy place, ahh... happy happy...
Darwin: Come here and smell these flowers! [He smells them] Mmm, daffodils!
[Gumball smells them as well]
Gumball: Hmm, they kinda smell like... [frightened] Granny Jojo!
[Scene changes to a park. Gumball and Darwin are there, miserable. Gumball sighs. A squirrel climbs down the tree and looks at him]
Squirrel: Aww. Why so sad? You need to find your happy place!
Gumball: There is no happy place!! [The squirrel falls over from the loudness. Gumball starts sobbing] Oh, I'm sorry, little creature!
Darwin: [sobs] I'm sorry I couldn't help you forget.
[The squirrel starts sobbing as well]
[Scene changes back to the Watterson house. Granny Jojo switches off the TV while Anais is busy studying blueprints to move Granny Jojo's bag up the stairs]
GrannyJojo: Anais? Anais?
Anais: Yes, Granny Jojo?
GrannyJojo: Did you take Granny Jojo's bag up to her room?
GrannyJojo: Well, hurry up it's almost 4:30 it's nearly suppertime. [turns on TV again] TV. Yeah.
Anais: [looking at blueprint] This should work.
[She jumps down on the plank, but the bag gets flung toward the front door instead]
Darwin: I'll get the door for you, buddy.
Gumball: Oh, thanks.
[Darwin opens the door, the bag flies out and Gumball gets trapped inside it and screams]
[Scene changes to dinner]
Darwin: Eat up, Gumball, dinner will take your mind off it.
[Gumball sees Anais mouth puckering after eating her soup, then sees Granny Jojo doing the same]
[He sees Darwin look up from his soup and makes some kissing motions. Gumball screams. The soup turns into a monstrous form and it chases Gumball all the way to his room. Gumball runs up to his room, and notices his door is locked. He tries to open it, but it reveals that the door knob is also trying to kiss him. Gumball screams before puckering up himself. The soup, which is now shaped like Darwin, Anais, and Granny Jojo, approaches him and they are about to kiss him when he wakes up and screams]
Gumball: [Relieved] Aw, man, that was intense.
Soup: [appears beside Gumball] Give us a kiss!
[Gumball wakes up for real]
Anais: Aww, come on, that's the fifth time tonight!
Gumball: What are you doing out there?
Anais: Trying to move the stupid bag!
Darwin: Gumball, maybe you'll never get over that kiss.
Anais: Then you need to fight fire with fire!
Darwin: Won't that burn the house down?
Anais: No, no, no! I mean he's got to go through something much worse to forget about Grandma's kisses.
Darwin: [gasps] Trauma therapy!
[Scene changes to a stadium]
Classmates: [cheering] Go, Gumball, go, yay!
Gumball: What if this doesn't work Darwin?
Darwin: Oh, it will work. It has to.
Classmates: [Cheering] You're gonna squirm, cry, sweat and scream!
Darwin: [Slaps Gumball] C'mon Gumball, this is going to be bad, I can't hear you.
Gumball: I didn't say anything.
Darwin: [Slapping Gumball] I said are you ready?
Gumball: No you didn't!
Darwin: Oh, are you ready?
Darwin: Run that way!
[Gumball starts running, and climbs up to a tall platform, As he reaches the top of the platform he finds that Darwin has somehow reach the top before him]
Darwin: Welcome to level 1! The Leap... of Faith! [Echoes]
Gumball: Leap of Faith? Sounds easy enough! [Jumps]
Darwin: Oh, did I say the "Leap of Faith"? I mean the "Leap of Filth!"
[Gumball drops into a dumpster]
Classmates: Ewww! Ohhh!
Gumball: You're enjoying this, aren't you?
Darwin: Uh huh. Forgotten about the kiss yet?
Darwin: On your feet, Gumball!
[Gumball continues running, with Darwin by the side]
Darwin: You really stink, but you're in luck! You're gonna take a shower! It's level 2! The shower of Slime!
[Gumball passes by below a snail]
Darwin: Forgotten yet?
Gumball: About what?
Darwin: About the kiss?
Gumball: Oh I had, but you just reminded me.
Darwin: Oh, then welcome to level 3! The See-Through Sac of Sweaty Cheese!
[Gumball enters the tent, the smell is insupportable, he leaves it running]
Darwin: Forgotten yet?
Gumball: No! [Gumball starts running, Banana Joe and Tobias pass by with a dish and a blackboard] What are you guys doing here?
Banana Joe: We're your next level. The sounds of suffering. Hahaha!
[They both start making noises]
Gumball: [covers his ears with his hands] Ah!
[They both leave, Darwin comes with Alan]
Darwin: Forgotten now?
Darwin: [starts rubbing Alan] How about now?!
Gumball: Aaaaaaahhh! Make it sto-o-o-o-o-op!
Classmates: [Cheering] Come on Gumball, keep going, keep trying!
Darwin: The good news is, this is the last level. The bad news is, this is the worst.
[Hector appears in front of Gumball and spreads his toes]
Gumball: Really? Okay, do it!
Darwin: [Kicks Gumball into the space between Hector's toes]
[Gumball throws up. He tries to get out to get fresh air, but Hector pushes him back. Hector then turns around and releases Gumball]
Gumball: So... What?
Darwin: He forgot it!
Classmates: He forgot it! Woo-Hoo!
I Did It!
[Scene changes back to the Wattersons' house. Anais is still busy moving Granny Jojo's suitcase]
Anais: [finally gets the suitcase into Granny Jojo's room] Ah! Yes! I did it! Granny Jojo, Granny Jojo! I did it!
GrannyJojo: [still watching TV] You did what?
Anais: I carried your suitcase up to your room!
GrannyJojo: Oh, well, good for you, dear.
[Cut to Anais with a happy face, with a heavenly choir tone playing]
GrannyJojo: Now bring it back down, my bus will be here any minute.
[Anais' face turns into anger as the view fades red and an ominous chord plays while the camera slowly zooms in. The scene then cuts to the outside of the house, as Anais throws the suitcase through the window onto the front lawn]
I Found My Happy Place!
[Gumball and Darwin running around]
Gumball: Ahahaha! I found my happy place! [they stop near the rats] Hey two rats eating a kebab!
Rats: Hey, Gumball!
Gumball: I found my happy place!
Rats: Oh that's great! Good for you, pal! [they continue eating,scene cuts to Marvin]
Gumball: Hey old guy!
Marvin: Oh no, wait! My back! [Gumball jumps in Marvin's arms, which makes his back fixed]
Gumball: Woohoo! [goes away]
Marvin: Ah! That's so much better!
Darwin: Hey old guy! [hits Marvin in the back then his back cracks again] Gumball found his happy place! [goes away]
Marvin: Darn it!
[Scene cuts to Anais and Granny Jojo]
GrannyJojo: Anais, give me a kiss goodbye and put my bags in the bus. [kisses Anais, then Anais tries to carry the bag] A little bit faster this time, please.
Darwin: Granny Jojo, Gumball found his happy place!
GrannyJojo: That's nice fish-kid, now kiss me goodbye. [kisses Darwin]
Gumball: Granny Jojo, I found my happy place!
GrannyJojo: Yeah whatever, now give Granny Jojo a kiss goodbye.
Gumball: Of course!
Anais: Gumball, give me a hand with this bag!
Gumball: Okay! [turns around and get kissed on the lips, his pupils shatter again]