When Anais is a newborn baby, Gumball and Darwin become jealous of their new sibling, and spark a baby war.
When Gumball and Darwin track a woman emerging from their home, they discover her to be a member of a gang of wise-cracking elderly friends; as they get closer to her life, they realize they may know her already.
After serving detention with the Bomb Kid, Darwin becomes his target; but his plan backfires when Darwin ruins his life.
Gumball and Darwin want to veg out all day, but their plans go awry and they have to save the rest of the family.
Gumball and Darwin are joking around, but when Tobias joins in and makes fun of Gumball, he's offended; they explain to Tobias that he needs to be higher on Gumball's friend list to make those jokes.
The kids try to help Dad bond with Frankie.
Gumball and Hotdog Kid discover why they're so awkward with each other.
Alan loses faith in humanity and turns the world black and white; Gumball has to get over his hatred of Alan to bring the color back by singing.
A group of kids gets locked in the school after their parents have a charity gala; they appoint Gumball as leader to get them out, but it leads to chaos.
Clayton shapeshifts into people to take their detentions for money; he starts framing people for misdemeanors so GB and DW must track him down to stop him.
Gumball has something difficult to tell Penny but he isn't sure how to start, until he and Principal Brown make an unusual pact; they decide to talk to each other's girlfriends about the problems they have.
Gumball and Darwin try to find out the name of their neighbor, Antlers Guy, but accidentally blow his witness protection cover.
Sarah finds a notebook from an awesome store that magically makes what she draws happen; unfortunately, she draws bizarre love stories throughout Elmore.
The family has to stop doing stupid things to prevent Anais from falling into a coma from face-palming too much.
Gumball hits rewind on Rob's Universal Remote just in time to save himself from being trapped in The Void.
Gumball and Darwin put Anais' new friend, Josh, through a series of tests to see if he's good enough for their sister.
Gumball and Darwin are convinced it's one of those days when nothing interesting is happening; as they walk around Elmore in search of adventure, it becomes apparent exciting things are happening just not to them.
After finding a secret manifesto on Alan's memory stick, Gumball and Darwin decide to foil his plan for world domination.
While reminiscing about meeting Richard, Nicole wonders if her life would have been better if she'd taken a different path.
After learning they cannot live without wi-fi, Gumball and Darwin try to obtain Mr. Robinson's passcode so they can go online again.
Carrie backs up Gumball's story about a monster, and the students want to hire them as ghost exterminators for Halloween candy.
When he is labeled a "loser" in an online test, Gumball believes he must do the opposite of everything he would normally do.
Rocky decides to stop living life online, and find love on a dating app, and Gumball and Darwin try to help him.
Gumball and Darwin give Bobert instructions so he will behave in a safe and responsible manner, but he applies the logic to their rules.
Gumball and Darwin are confused when they meet Kiki and Quack, a pair of siblings that copy everything they do and say; Gumball and Darwin find out this copycat family is making money online from imitating the Watterson family.
When Darwin has lunch with Idaho, he decides to stop eating potatoes in solidarity with his brotato; Darwin finds his obsession with his favorite food harder to kick than he ever imagined, so Gumball decides to help his friend curb his carb cravings.
Nicole tries, and fails, to hide her disappointment when Richard and the kids fail to remember her special day; Richard has to figure out what special day he has actually forgotten and then make it a day to remember or else.
The family goes to visit Richard's dad; Based on his basic living standards and extended absence from Richard's life, they assume Frankie must have done a stretch in the slammer.
Sick of Granny Jojo's ugly gifts, Nicole encourages the kids to take matters into their own hands and accidentally break her latest hideous vase; when Gumball, Darwin and Anais try to destroy the vase, they discover it is more robust than it seems.
Gumball enlists Carrie to help bring Darwin and Teri together, but when they can't make Darwin and Teri's love blossom naturally, they decide to make it happen supernaturally.
The Wattersons receive an unmarked package in the mail; to distract themselves from the urge to open the package, the Wattersons all take turns to imagine what it might contain.
When Gumball is given a cursed video game console, Elmore becomes trapped inside a fantasy RPG world; Gumball, Darwin and Anais have to battle their way through town, unraveling the secrets of their new virtual reality.
When Darwin asks Gumball to teach him how to skate, Gumball makes sure he covers every aspect of the skating lifestyle from wearing the right gear, using the right terms and choosing the right board, but forgets to teach him how to skate.
When Gumball and Darwin realize Grandpa Louie has no friends, they create one called Muriel, when Granny Jojo finds out Louie has been spending time online with another "woman," Muriel not existing isn't going to stop her from being destroyed.
Gumball, Darwin and Anais discover that Mr. Wilson has been picking on their Dad for most of his life, so they try to get back at Mr Wilson to break the cycle.
When Dad gives Larry's hairdresser a bad review for saying he's bald, Gumball and Darwin are inspired to go on a reviewing spree across town, forcing Larry to give them stuff with the threat of a bad review.
When a failed test grade brings down Gumball's grade point average, Gumball is forced to return to kindergarten.
Gumball and Darwin find out why Dad's diet was not working, and after they help him lose weight, Richard becomes more obnoxious.
When Gumball learns that his nemesis has found a new nemesis, Gumball tries to sabotage Rob's new "enemy-ship."
Gumball refuses to accept he is the only kid at school that doesn't have special powers; Gumball convinces Mrs. Jotunheim, Hector's mom, to take him on as her apprentice but she soon learns leaving Gumball unsupervised around magic is a big mistake.
When Richard hears the urban legend of a secret Joyful Burger, he will stop at nothing to devour it.
Gumball and Darwin are desperate to meet Ocho's famous uncle.
When they see the school bullies making fun of Sussie, Gumball and Darwin decide to try and help her act less weird.
Richard finds out that it is probably not a good idea to wear a motorcycle helmet into a bank; he learns that doing so can lead to a lot of unnecessary trouble.
Darwin and Gumball cannot be found on the first day back at school.
When Gumball and Darwin decide to join a crew, they are determined to prove their worth to senior citizens.
After learning what grade Anais is in, Gumball and Darwin discover that there is a whole new world of students.
When Richard learns of Granny Jojo's plans to marry, he sets out to adopt Louie so he can forbid the wedding.
After they receive an extravagant invitation to Masami's birthday party, Gumball and Darwin are anxious to find just the right gift for her; they're not the only ones: it turns out every kid in Elmore is competing to get Masami the perfect present.
When the Wattersons arrive at the mall for a day of shopping, they struggle to find a space in the parking lot; they search for a space everywhere using all their intelligence, cunning and trickery.
Gumball and Darwin are devastated to learn that Mr. Robinson is selling his house and leaving town.
Gumball and Darwin try to teach Anais how to resolve the problem peacefully.
Gumball, Darwin and Anais are delighted when Grandpa Louie gives them a check for $5000.
Richard goes to the store to buy mayonnaise but things go astray.
Gumball and Darwin get a new operating system.
Gumball stars in his own comic.
Afraid that he is losing Penny, Gumball sends her on a romantic quest to rekindle their relationship; his plan backfires, pushing Penny further away.
After trying to give up the Internet, Gumball and Darwin end up falling down the Elmore Stream-hole.
Gumball decides that the best way to prove to Mr. Fitzgerald that he's good enough for Penny is to become his apprentice for the day.
Gumball tries to prove that he is not predictable.
Darwin looks for the good in Mrs. Robinson.
Gumball calls Alan a traitor when Gumball thinks Alan lied to get out of having dinner together.
When Mom and Dad struggle to keep hyperactive, toddler-aged Gumball from trashing the house and exhausting them, they decide to buy him a pet.
Via the sewers, Darwin finds himself flushed out to sea; he is terrified but determined to make his way back to the Wattersons; a fish can't get very far on land so Darwin does millions of years of evolution in a matter of hours.
When Jamie decides she needs to have a sweetheart, she targets Darwin as the best candidate.
Gumball and Darwin try to cheer up Mr. Small, who feels depressed because he believes he has not inspired his students.
When Gumball develops a bizarre stutter, he unintentionally offends Darwin.
Gumball and Darwin read Anais' diary and discover her relationship with a new friend is one-sided.
The people of Elmore search for the meaning of love.
Gumball runs into Hot Dog Guy while on the way to the store to get ketchup.
Upon a neighbor's mysterious disappearance, the Wattersons' search for clues leads them to a strange egg.
In order for Tobias to let them use his points in a video game, Gumball and Darwin must do his chores for him.
Parents try to teach the students of Elmore High a lesson about skipping school.
As night falls in Elmore, the Moon goes on a tour through the various dreams and nightmares of the town's slumbering inhabitants; each character's dream shows their innermost desires, their greatest fears or just how plain weird they are.
Gumball has a misunderstanding about his date with Penny; he thought they were meeting for dinner but they were actually meeting for lunch at a diner called Dinner.
Thinking that he is homesick for the sea, the family try to make Darwin connect with his roots.
Gumball gives Billy his first taste of video games, but the sheer excitement causes him to pass out; his mother, Felicity, summons the PTA and threatens to ban video games all across Elmore.
Gumball is jealous when he realizes that Tobias doesn't greet him with his special high-five slap.
Anais believes Gumball and Darwin stole Daisy.
The kids are surprised that Nicole doesn't fight back when insulted by a strange figure.
Funny and bizarre clips uploaded to the Internet by the people of Elmore.
The boys instruct Molly on how to make her stories more exciting.
When Rob purchases a universal remote from the Awesome Store, he discovers he can control the entire universe; he rewinds into the past and remembers Gumball had left him.