The episode starts with Darwin eating with Carrie. Darwin notices Carrie's dismay as she cannot eat, and lets Carrie borrow his body. However, Carrie eats everything in sight, including some of Doughnut Sheriff. The scene cuts the arcade, where Darwin misses a shot on the basketball hoop. Carrie uses telekinesis to make a shot go in, which Darwin disapproves of. Carrie then steals a bunny plush, making Darwin swoon. They are then playing Dance Dance Revolution, with Darwin winning. Carrie cannot do it, as Darwin notices. Darwin makes a joke and they both laugh. The scene cuts to the amusement park, where they prepare to go for a ride. Darwin is nervous, but Carrie calms him down. Carrie cannot go with the ride, and the ride only propels Darwin up. Carrie laughs at this, though. It then cuts to the cemetery where Darwin takes a picture, but Carrie is not in it. Carrie brings out her camera, and they take a new picture, but now with several ghosts behind them.
In the cafeteria, Leslie and Masami believe something is going wrong with Darwin and Carrie's relationship. They see Gumball, and slide over. Gumball first does not know what they are talking about, but Leslie tells him. Gumball says he has no doubt, but when Leslie and Masami leave, Doubt appears in Gumball's lunch. After growing larger an larger, Doubt finally convinces Gumball to spy on Darwin and Carrie.
At the park, Gumball sees Darwin and Carrie. He tries to use Colin's glasses to get a better look at them. It does not work, so he gets closer by hiding inside of a tree. Carrie is laughing at several medieval-themed memes. Darwin does not understand what makes them funny, so Carrie tells him she is 327 years old. Gumball thinks this could be enough to tear them apart. Carrie then tells Darwin she has had one other boyfriend, but that Darwin was better. Carrie and Darwin leave, and a dismayed (and deformed) Gumball follows.
Darwin and Carrie arrive at Elmore Records. Carrie thinks Darwin would not like her music, but Darwin tries it anyway. His face starts melting, and Gumball remarks that she is cool and he is not. He thinks this could tear them apart as well, as Darwin continues to melt.
They are then at the park again, but Carrie says it was built on an ancient burial ground. Darwin thinks it is windy, but it is revealed to be a demon exhaling on everything, which only Carrie is able to see, much to her dismay. Gumball remarks that the fact they see the world differently could tear them apart.
They are in the arcade again, but this time, they are measuring their pulse to rate their love. Once they try the machine, however, the meter falls down due to only detecting Darwin's pulse, and they get a card saying that their love is in need of CPR. Carrie tells Darwin she does not have a pulse, and Gumball says that could tear them apart. Carrie then bumps into Azrael, her ex-boyfriend. They start cracking jokes, and Carrie says they should hang out.
Back at the house, Gumball tells Darwin about what he saw and takes Darwin to find Carrie. They run to the cemetery on the Dolphin Man, clouds, and a slide. But when they find Carrie and Azrael, Carrie straightens everything out.
Back at school, Gumball realizes what he has done and apologizes to Darwin and Carrie. They forgive him as Darwin points out that Leslie and Masami where the ones to mess with Gumball's head in the first place. However, he also mentions that fortunately they did not try to do the same with Gumball and Penny, otherwise the former would have gone insane. As Darwin and Carrie leave the scene, Gumball notices that Doubt has appeared again. Not wanting to put up with him anymore, Gumball kicks Doubt into Masami and Leslie and then smirks in victory, ending the episode.
Character designer Jeremy Pires has designed and animated the chase sequence of the episode with the assistance of Jonathan Djob Nkondo and Nicolas Dehghani, making him the ninth guest animator of the series.
Gumball breaks the fourth wall by saying that someone is probably watching them right now (indirectly referring to the viewer), and then accidentally touches the screen.
The people featured on the cover of The Editones album at the record store are, from left to right, Tony Hull, Richard Overall (both picture editors for the show), and Sam Cassidy (the show's assistant editor) in drag.