Lucien "rescues" a monkey from the Haz Chem Soap Factory, only to discover it is actually Mr. Winkle's special pet.
A silent clown sets off Lucien's clown phobia and Wayne injures himself on a dangerous trampoline.
A psychologist studies Wayne and Lucien to prove that all twins are alike.
Wayne replaces Wendy's birthday present with a rusty engine block.
Lucien makes Wayne disappear during a magic show and cannot get him back. It appears Wayne was sleeping in a wagon in the dump. Wayne then re-appears and Lucien is almost in trouble, until he gets Wayne to confess.
Mr. Winkle rejects the girly gifts Wendy makes for him, so Wayne teaches Wendy how to act like a boy to impress Mr. Winkle. Then Mr. Winkle takes Wendy and Wayne out night-hunting, but Mr. Winkle thinks Wayne is acting like a girl.
Wayne draws a caricature of his teacher on the blackboard with big "kissy" lips and spreads a rumor that Miss Hissy has a boyfriend.
Lucien and Tony get into a fight when Tony thinks Lucien really hates the swamp, therefore breaking them up. Wayne becomes "Tony's friend". Wendy becomes Lucien's "boyfriend."
Mrs. Cramp competes to be the best homemaker.
Strange family expects Lucien to play the part of their daughter on parent-teacher night.
Wayne gets body hair and thinks he's growing into a werewolf.
After Mr. Cramp decides to give up riding the bucking bull after one fall too many, the rest of the family hatch a plan to get him back in the saddle.
Lucien is overjoyed when the new girl, Patsy McCloud, invites him to come over to her house.
Wendy Winkle kisses Wayne, leaving an indelible mark on his neck.
Lucien and Tony play a nasty trick on Wayne at the annual Haz Chem Country and Western barbecue.
Mrs. Cramp is determined to try out her new cleaner, but the rest of the family are not so willing.
The twins have to find a job for their school project on work.
Tony tries to convince Lucien that he has psychic powers and can read Wayne's mind.
Lucien finds an injured chameleon able to camouflage in the swamp and brings it home to take care of it by his mom's approval. And it likes him. Or does he? Wayne is scared of the chameleon and by all means to get rid of it.
Lucien and Tony grow lobster grass on other lawns. But all of Soap City wasn't pleased by the grass. Now the city has all means to get rid of them.
Wayne tries to gain time off school by catching a cold.
Lucien investigates a number of accidents at Soap City.
The family spend a weekend in a primitive cabin deep in the swamp.
Mrs. Cramp decides the barber is too dirty to cut the boys' hair, but after helping to clean his salon with her special cleaning potion, she finds she may have done more harm than good.
Wayne uses a bird call whistle to attract the crested marsh swallow - and the Cramp family end up with a rooftop covered in birds!
Wendy Winkle discovers radishes.
Wayne plans a special ceremony to commemorate the life of Lucien's favourite pet worm.
Lucien decides on a purple-themed outfit - but one vital piece of clothing is missing.
Mrs. Cramp calls for an inspection of everyone's room.
Mrs. Cramp goes to a spa where she is worshiped by monkeys.
After Mrs. Cramp suggests expanding the kitchen, Wayne's attempts at DIY end in disaster.
After seeing an alien invasion movie, Wayne becomes convinced that Soap City is being targeted by extraterrestrials.
The city council decides to get rid of the swamp. But Lucien, Mari, and Tony want to save it. And the only way to is to show them a real live Hairy Marsh Snail.
Lucien learns martial arts.
Lucien undergoes a radical transformation when he switches breakfast cereals.
Mari goes to extreme lengths to avoid having her family photo taken.
Walk Like a Man: Lucien sneaks into Wayne's room and paints stubble on his face.
Lucien struggles to master a new skill.
Mrs. Cramp's mother brings a baby grand piano when she visits.
Flakes from the soap factory fall all over town.
A five-year-old cousin comes to stay, but insists on acting like a big baby.
Wayne causes a flood when he flushes Wendy's replica doll down the toilet.
Wayne goes fishing in the toilet bowl. Lucien desprately needs to use it. But he cant tell his mom because she has some friends in the house.
Lucien's mother hatches a plan to sell mud door to door as a beauty aid.
Wendy asks Wayne to look after their animals when they go on holiday.
Wayne is given the harp to play in the school orchestra.
When Wayne turns up for the school photograph in mismatched clothes, the photographer declares him a cutting-edge trendsetter, and soon all the other children are desperate to copy his style.
Tony thinks that he is shrinking. Lucien does by all means to make Tony grow.
Lucien thinks he was adopted.
Mr. Cramp's favorite country western singer comes to town.
Wayne keeps on crying but why does he? Wayne never cries! Something must be bothering him, but who or what?
Lucien is being bothered by a girl who bosses him around school.
Tony and Lucien see a book from Grizzly Mike in the sewers and try to use it to act ""brave"", meanwhile Wayne rips his pants and gets new stretchy ones.
Mari turns into a bad girl and Wendy Winkle joins her gang. Meanwhile Wayne gets beaten up by another girl gang who's tough, so he disguises as a girl to get into the gang to get back.
Wayne makes a bike and enters a rally that only accepts go-karts. He finds two thugs and invite them to Wayne's house. Lucien sees Tony's kart, in which the wheels don't turn. Lucien sees a shocking discovery about it.
Joann is hired to fix the Winkle Family's car. Wayne falls in love with her and this manes Wendy jealous.
Lucien and Tony try to stop water pollution and are accused of making acid rain, so Wayne and Wendy join a club against them. Lucien and Tony try to clear their names out - apparently someone threw a pumpkin.
Lucien finds an egg in the swamp and takes care of it, and his parents take care of the egg and forget to take care of Wayne.
Mr. Cramp, the twins, and Tony go to an amusement park. Tony tries to have fun in the kids section while Wayne wants to destroy it, Mr. Cramp wastes money on turnip toss.
Tony is tired of being home schooled in the sewers. Wayne is tired of being in a public school. Tony's parents enroll him to Lucien's school. Wayne is being home schooled in the sewers. But Tony experiences life in a public school.
The school is on holiday for cleaning and Wendy takes care of Sheila while Lucien takes care of the school pet Hank, which changed into Hankenstien, but it only likes Wayne and does what he says. But eventually Wayne loses his voice and at the same time Hankenstien runs away.
Lucien's cricket gets hit by Mr. Cramp's car and thinks he killed it. Wayne haunts Lucien and resorts to Mari. But she's no help either because she hypnotizes him to forget it. And later on, she does the same but accidentally made Lucien tempted to squish everything.
Wayne thinks he's a vampire after seeing a movie.
Tony says to Lucien that he's getting married to Missy Chris but Lucien says he can't but when he finds something strange about Missy he stops Missy Chris from being Missy Parsons.
A big bully moves in to Lucien and Wayne's school, rendering Wayne an amateur.
A lady moves across the road, and the Cramp's (excluding Lucien) think she's a spy. Of course, apart from Lucien, none care how Agent X just comes in without using the door.
Lucien builds a treehouse. And soon, Wendy makes a treehouse next to the Cramp's house on the same tree Lucien built his, as an attempt to see Wayne forever; much to Wayne's annoyance.
Wayne hears a kid getting cool weekends because his parents are divorced. Wayne thinks is he split his parents up, he can get the same for that kid. But he soon faces serious consequences.
Wayne becomes a stuntman, and Lucien spies on him, and makes a website. Unfortunately, this makes Wayne popular.
After Wendy and her mother insult Tony, he puts a curse on them. Later that day, there's a sewer flood in her house, the word soon gets out.
Mr. Winkle cheats to make a Lice outbreak so his products will sell.
Wayne gets punished by being put in charge of the kindergarten nursery. Wayne teaches the little children how to be like him, a monster.
After a mix up with breakfasts that are for animals, Tony bans Lucien from the Swamp. Than Lucien grows his own alien type flies.
Mrs. Cramp leaves, and Miss Hissy becomes their temporary mother.
After Wendy realizes she's a fashion designer, Wendy gets her own designer range, and makes work and school uniforms. Unfortunately, this leads to a number one ticket to humiliation
The junkyard is getting removed and a glue factory will take its place. Wayne resorts for Lucien for help, and Joe comes to stay with the Cramps. Mrs. Cramp isn't pleased with his behavior and decides to do by all means to get rid of Joe. Lucien thinks that cleanliness is the problem with animals.
Sure Lucien is smart, but he can't dance. His parents let Wayne teach him to dance. Wayne and Lucien compete in a dance contest for candy-filled pants, and Wayne disguises as the goth ""Dancin' Dave"" to compete.
Wayne tries to get Lucien to like him so that they can enter a best brother contest to win a superbike. He does by all means to convince Lucien to sign them up.
Miss Hissy assigns the class to do a movie project. Wayne makes a film about a tricycle superhero, and Lucien makes a movie about swamp people such as the Parsons.
Wayne is addicted to a sugarhigh treat called Fizz-Bombers. Mrs. Cramp gets suspicious and does spit checks, so Lucien collects other people's spit to cover it up.
Lucien goes on protest dressed as a whale to try and help save the whales. Naturally, he becomes the newest craze, ""Fish Boy"", after Wayne ""helps"" him to get on the news.
Wayne's madness won't stop until Dr. Desctructo from the comic gets defeated in the final pages. Lucien decides to add an extra page so he becomes a good guy, to see if it will stop Wayne. Soon, he is doing this for everything to his advantage.
Wayne gets Piteous Dave to give him tattoos.
When Lucien has fun with Mr. Parsons, Tony gets jealous and they both tell him he needs to hang out with his own father.
When one of the Parson's geese escapes, the Parsons suspect the Cramps, and the only way Tony and Lucien can see each other is in secret.
After Dirty Joe gets a girlfriend, Wayne is upset. When Lucien sticks up for it, Wayne makes him try to get one himself.
Wayne gets a video game (very similar to Resident Evil) on a handheld. But he plays it for so long without rest, that when the batteries run dry, he effectivly becomes a zombie on the hunt for batteries
Wayne gets invited to be an actor in a new movie, and has to go into the swamp.
After being told off for riding his trike into the classroom for show and tell, Wayne makes a big protest about the school being boring. Miss Hissy and the other kids make fun of Wayne and when Mari calls out lion-taming as a suggestion, Miss Hissy tells Wayne that if he finds a lion he can bring it in.
The twins go over to their grandma's house to unknowingly be used as wolf bait.
Lucien competes in a girls' pageant.
Wayne trains his dad into being assertive so he can get paid more.
Wayne and Lucien end up working at a supermarket for knocking over some glasses.
Mr Cramp wants to prove that he's just as cool as Mr Parsons and Mr Winkle.
Lucien wants to help Randall lose weight, while Wayne wants to get fat so that Wendy won't like him anymore.
Lucien is sent to live with the Phelps as part of a mentoring scheme, while Mari goes to live with the Cramps.
Mr Parsons gives Wendy a talking pony which is actually Tony throwing his voice.
Wayne wants to go to work as a miner and chimney sweep to avoid school.
Swamp gas fills the Cramps home, which makes everyone but Lucien feel happy.
Wayne reawakens his brotherly bond with Lucien after finding his long lost owl doll.
When Wayne hurts Lucien with his games he is banned from playing with his brother. But with Dirty Joe away and his father grounded, Wayne has nobody else to play with and decides to make a new brother, Keith, out of junk. When Keith is a hit with the family, Lucien feels pushed out and he and Tony agree to get rid of the robot.
When Agent X offers Mrs Cramp a job, Mr Cramp and Wayne are both shocked and upset. Wayne says mothers aren't supposed to work, but Lucien stands up for his mother and consequently ends up forced to take on all her duties.