The episode begins with Gumball, Darwin, and Anais sitting on the steps at the front of Elmore Junior High, waiting for Richard to pick them up. Suddenly, Richard arrives riding on a horse named Wunderklopp. He then throws the children onto Wunderklopp hurriedly and it brings them home.
Nicole soon discovers that Richard had tried to frame the kids for the horse. She then reveals that she had someone to buy Wunderklopp in advance, but the buyer cannot take the horse before the first of next month, so she asks the family what to do until then. Gumball suggests that they spend some of his money to go to college, which has everyone break out in laughter. Richard then decides that he has to call Don Luciano, a pizzeria manager who he has had a problem with in the past. Richard then denies Don’s offer for him to stay, much to his dismay. He hangs up, while Richard and Nicole cry. Darwin tries to break the sadness by suggesting to give hugs and kisses for money, but Darwin then realizes that this is a bad idea. Anais then suggests to make the house a "Bed And Breakfast", but Nicole declines the idea, saying they can barely afford their own breakfast. She then decides to rent the house as a bed, but stay and eat there.
Soon after, Ethel and Bernie introduce themselves at the door. After they take a picture of them and the Watersons, Ethel explains that she and Bernie are making a travel map of where they have been. She reveals that she and Bernie are the first tourist in over 20 years to arrive in Elmore, an event so notable that the town had built statues of them, with an engravement that stated that they were trying to get out of town. After noticing that the inside does not look exactly like in the ad that the Watterson post, Nicole reveales that the ad actually featured a close up of a framed photo in the living room. It is also revealed that everything the Wattersons put on the ad was exaggerated such as having cable TV (a telescope spying on the neighbour's television), air conditioning ( a fan with ice cubes taped over it) and a hot tub (a pot with warm water with Anais making the bubbles). Just as the Wattersons leave the house, Bernie tries to ask them if the house is soundproof but it is too late as the family left, and after seeing the horse the goats freeze and faint.
Later, it is shown that the Wattersons continue living in the house in secret. First, when Ethel looks in the refrigerator, she notices that both the meat and cheese do not have any insides and when Bernie asks what she needs from the store she replies with the insides of certain foods and a microwave, and it is shown that Richard took the inside of the food and the microwave to cook the food. Then, when Bernie is taking a shower, he notices that he can not wash out the shampoo, and it turns out that Richard is distracting him while he takes a shower. Later that evening when Ethel orders a pizza, Nicole uses her claws to cut a hole in the bottom to take the pizza, Later as Bernie tries eat a potato chip, Gumball and Darwin hit it so someone else can get the chip. Then Ethel is on the computer which surprises Bernie as Ethel said that voices in her mind had told her to do it, not knowing that it was actually Gumball and Darwin who were secretly telling her to go online. The next morning Bernie come out of the bathroom with Richard behind him as he sheds a tear. Later, as Ethel is cleaning up the table, she hears a sound but dismisses it, not knowing that it was Wunderklopp who is under the table. Later that night as the Wattersons begin to eat the food Bernie bought, Bernie comes downstairs without his glasses on, as he heads to the counter to get a glass of water. To make sure he does not know that it is them, the family makes different sounds to pretend to be something else, with Richard making a a description of what he is.
As Bernie and Ethel prepare to go to sleep, they notice that every time they turn off the light an extra pair of eyes appear, then, when Bernie pretends to turn off the light Richard and Nicole appear, causing the goats to freeze and faint. As the kids enter the parents room Nicole and Richard lie to them about the goats hibernating and the family come up with a foolproof plan; dress them up like they are still alive and help them with their dream trip and afterwards they can dispose of the bodies on a train so it can be someone else's problem.
After dressing them up, the Wattersons take Bernie and Ethel to tourist attractions over Elmore and take photos of them, such as a baseball game, a roller coaster, the mall, the park where the statues of the last tourists are, and Joyful Burger. However, the Dolphin Man appears in the latter and seems to have a issue with Bernie as he explains that the car he sold him was a lemon and demands his money back. When Bernie does not replies the Dolphin Man tries to punch him only to miss and take a direct punch to his own face, after which the family continue their scam. Then the family takes them back home where they pretend Bernie and Ethel are at the beach, swimming in the ocean and sky diving. Afterward Nicole gives the family five stars and writes a positive review on the ad. Later as the family begins to move Bernie and Ethel to the train to drop them off, Bernie and Ethel come to and question what they are doing. Gumball explains that the goats were hibernating but Bernie explains that when they are surprised, they faint. Then, Gumball shows them their map of everywhere they went on their holiday. At first, Bernie and Ethel seem to be suspicious, but they decide that they must have just forgotten the fun time they had and give Nicole the money.
Unfortunately, Ethel discovers something strange about the photo at Joyful Burger and Bernie figures out the plot. When Nicole asks how they figured it out, Bernie reveals that he and Ethel are actually brother and sister rather than an old married couple.
The next day, as the family discovers that they have no more food until next month, they come up with a horrible solution— eating the grass outside with Wunderklopp.
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Waiting for Dad
[The Episode begins with the Watterson children sitting right outside of Elmore Junior High.]
Gumball: I’m just saying, why do people say grapefruit and tunafish but not eggchicken or beefmammal?
Darwin: [wailing] Come on Mr. Dad, when we said come pick us up after school we didn’t mean after graduation!
[Richard arrives on screen and dismounts his horse.]
Richard: GET ON THE HORSE!!
Gumball, Darwin and Anais: WHAT!?
Richard: [Jumps off horse] NO TIME TO EXPLAIN!!
[The children get on the horse and Richard slaps it’s behind, causing it to run.]
[The scene begins with the Wattersons looking out of their backgarden.]
Nicole: Let me guess: You saw it, had to have it and tried to let the kids take the fall for it.
Nicole: [face slaps] What is it called?
[The screen cuts to Wunderklopp, who snorts, then neighs.]
Nicole: [sighs and face slaps] It’s okay. I’ve land up a buyer to take him off our hands.
Anais: Wait. How can you already have a buyer for a horse Dad just brought home?
Nicole: Oh, sweetie, do you really think I didn't expect your father to buy a horse at some point in our marriage? The problem is the guy can't buy it before the first of next month, so short of having Wunderklopp for breakfast, [Wunderklopp neighs] I'm open to suggestions on how we're gonna survive until then.