Panic on Board John and Beth invited Corneil and Bernie to join them on vacation in the tropics. However, Corneil is frightened of flying on an airplane. Bernie gets the tickets and a non-prescription medicine that would calm Corneil down. Corneil tries cancelling the flight by prank calling as a health department ageny. Unfortunately for him, they found another plane en route to the tropics. Bernie decides to show Corneil the cockpit. Bernie ends up feeling woozy and tries to take some of the medicine. Unfortunately, the medicine contains a strong ingredient that knocks out the user. Two of the users were the pilots, forcing Corneil and Bernie to land the plane.
After Corneil writes a mathematical equation on Bernie's teacher's blackboard, Bernie's teacher believes that Bernie is a genius.
Bernie believes he has seen Dracula.
Bernie becomes a contestant on the reality show "Jungle Panic" and brings an unwitting Corneil with him.
After no one listens to him, Bernie has Corneil help him make a radio show called "Radio Bernie" but after the first show is a bomb, Corneil makes a fake phone call that makes Bernie decide to make another one. When Corneil makes a show as Dr. Bernie the show becomes a hit.
After Bernie is made fun of for reading science fiction/alien magazines, he claims that he has seen a real alien. When his friends want to see it, he forces Corneil to dress up as an alien.
Corneil falls in love with a poodle living in his apartment complex. However, Bernie is not too fond of the dog's owner who seems to have taken a liking to Bernie.
Bernie loses Corneil while he is distracted at a store and believes that Corneil had been kidnapped. Bernie soon finds out otherwise, but not before getting the police involved.
Corneil meets another dog owned by one of Beth's friends who has a striking resemblance to Corneil. Bernie is later fooled by Corneil into taking the other dog to the amusement park to go onto a roller coaster. However, Corneil realizes that he made a huge mistake.
Bernie is assigned the task of picking up Beth's gift from John for John and Beth's anniversary and is determined to make it a special night for the two during their dinner. Corneil, on the other hand, is skeptical of Bernie's ability to not ruin John and Beth's night after hearing about Bernie's past mess-ups.
After accidentally wiping out the city's power by damaging the generator, Bernie must make amends by taking care of an elderly man. Corneil later suspects that the man may have learned his secret and the old man soon puts both Corneil and Bernie's lives in danger while they attempt to find out what the man knows.
While Corneil and Bernie are hiking, they learn from reporters stationed in the area that miners are trapped in an underground cave in their area and Bernie is determined to become a hero by going underground to rescue them. However, he puts his and Corneil's lives in danger because the cave is about to be flooded.
A robber named Joe the Scoundrel breaks into John and Beth's apartment and steals a very valuable painting in the dead of night while Corneil is home alone and witnesses the whole ordeal. He soon drives his owners and Bernie to the edge, afraid that Joe will return, but he soon gathers the strength to capture the thief.
When Bernie makes a visit to his red-neck cousins out in the country, Corneil resents the way he is treated by them and is given the task of capturing a wolf that has been devouring Bernie's cousin's chickens during the night.
Corneil grows tired of the way dogs like himself are treated and is driven to the edge when a woman at his apartment complex hits him with an umbrella because he is always in her way. Corneil takes her to court with Bernie as his lawyer, who is only interested in the publicity while Corneil only wants an apology.
Bernie is holding Romeo's karate video for him, but it ends up getting confiscated by his school principal. Bernie later convinces Corneil to help him get the tape back by telling him that it is a tape of Corneil talking.
Bernie asks out a girl named Karen, who he has a crush on, to a school dance so that Romeo doesn't get the chance to, but breaks his leg just before and tries to cover it up by insisting that Karen and him stay seated during the dance with the help of Corneil while Romeo attempts to get Karen away from Bernie.
When the newspaper ranks dogs as behind humans in evolution, Corneil takes part in an intelligence contest to prove the writers wrong. But, he soon puts his secret in danger in his determination to beat a monkey taking part in the contest.
When Corneil finds out that John and Beth are giving him away because they are having a baby, Corneil asks Bernie for help.
Corneil criticizes Bernie for being a fan of a soccer star, but later realizes that he himself is a fan of an opera singer and tries to prevent Bernie from finding out, knowing that he'll be ridiculed for it, but Bernie eventually figures it out.
The store owner is looking for new dog model and Bernie thinks it should be Corneil, but due to his embarrassment of wearing clothes he refuses, but Bernie is not giving up that easily.
Romeo friends are all away on vacation and has no choice but to ask bernie to hang out with him, Corneil on the other hand wants to go to the library instead and will try anything to get Romeo to kick them out of his home.
Joe the Scoundrel returns, but this time he's turned a new leaf and is currently working in the cafe Bernie usually eats in. Knowing that Joe will always be out to find Inspector Corneilius, Corniel comes up with a plan to make sure Joe never finds him.
Bernie loves this comedy show but Corneil hates it because it's an insult to dogs, later the shows star dog is injured and has to be replaced, Bernie wants Corneil to join, but because of his hatred for the show he refused until Bernie uses reverse psychology to trick him.
After Corneil rescues a dog from the dog-catcher, Bernie parades around the town at night as "Santa Man" with his sidekick "Santa Dog".
A relative of John and Beth's who has lost her dog gets a little bit too attached to Corneil.
Corneil creates his own perfume, and tests it on Bernie. When Bernie starts to become popular, Corneil decides he wants to market the perfume. But Bernie wants to keep it to himself.
Corneil is tired of Bernie's lies, so when Bernie claims John and Beth gave him their ticket to footballer Vavaropo's party he tears the ticket up and throws it away, only to discover he was telling the truth.
When Corneil overhears Romeo and Bernie repeats it, he claims he is telepathic. Now Bernie must prove he is telepathic by guessing what's inside Martha's shopping bag, or else Corneil's secret is out.
Bernie claims to Romeo that John and Beth's apartment is haunted when Corneil cleans up the kitchen while nobody's around.
John & Beth are painting Corneil's room, so Corneil has to spend the night in their room. Unfortunately, Corneil finds out that he talks in his sleep, and asks Bernie to help cure his sleep talking as Corneil fights to stay awake through each night.
Bernie bangs his head and loses his memory, and is astonished to again find out that Corneil can talk. Only this time, he doesn't plan to keep it a secret.
After Corneil refuses to show Bernie what Corneil has written in his diary, Bernie decides to scare Corneil and thoughtlessly takes his own diary around under the guise of it containing entries of Corneil's ability to talk. Suddenly, Bernie loses his diary and realizes that Julie, Bernie's school friend, has his diary, and Corneil helps him to take the diary back.
While Bernie is dogsitting Corneil at his own place, Bernie finds out that Corneil has never eaten ordinary dog food. After an argument between the two, Bernie refuses to give Corneil anything other than dog food, while Corneil tries to sneak other snacks by Bernie.
Corneil is sent to an animal shelter, where a lonely old man who lives in a retirement home adopts him. Bernie tries to get him back, but Corneil feels bad for the lonely old man and doesn't want to leave him.
Annoyed by Corneil's 'know it all' attitude, Bernie tries to prove him wrong with a souvenir he bought on the beach, which he believes is a true Mayan artifact.
An outburst from Corneil lands Bernie in a half pipe competition between him and a bratty kid named Rudy.
John & Beth are planning a cruise. After finding out that Corneil can't swim, Bernie takes it upon himself to reteach Corneil his basic canine instincts.
To avoid his haircut with Aunt Gina, Bernie tries to get Corneil trimmed instead, but the state of Gina's salon puts Corneil off, especially when he'd rather get his hair done by a top stylist.
Corneil urges Bernie to return a watch he found in a garbage can, but Bernie insists on keeping it. Corneil is determined to prove to Bernie that keeping the watch is nothing but bad luck.
Bernie tries to separate uncle Rico and Mrs. Martin after mistakenly believe the two are in love.
Bernie finds out that Corneil writes poetry under a pseudonym. Bernie pretends to be him in order to get them both into the poetry club. When Bernie has to prove himself, Corneil builds a state of the art pen that allows him to write the words while the pen is in Bernie's hand.
The cousins of Bernie are in town for the agricultural show, Bernie begs Corneil to install(settle) at John's and Beth, but Corneil do not have all right because the cousins of Bernie are neglected. To what extent Corneil will keep(guard) you see he its sense(direction) of the hospitality?
Bernie, worried that he may not get the scooter he wants for his birthday, goes on a camping trip in an effort to bond with his uncle Rico. In a turn of events, uncle Rico may end up bonding with Corneil.
After Bernie loses his money, he tries to get a job in ventriloquism, and Corneil's the puppet.
Bernie enters Corneil in a race against Romeo's dog, Turbo. It soon appears that the training required to beat Turbo may be too much for Corneil to handle.
Corneil builds a highly intelligent robot named "X998". Bernie tries to steal the robot to assist him on his schoolwork. After accidentally biting off an important piece, the robot malfunctions and causes mischief throughout the school.
Bernie finds a cat, and asks for John and Beth to keep it. Corneil does not get along with the cat.
Bernie is mistaken as the heir of a large fortune. Corneil tries to set things straight.
Bernie is hired as an intern for a police department. Disappointed by the menial tasks they have given him, he seeks out to solve an real crime.
After crashing his cousins' tractor, Bernie enters Corneil into a farm animal contest to try and win prize money to pay off the damages.
Bernie tries to take credit for a bone Corneil discovered while they're on a school trip to the desert.
Bernie has been promoted! He’s now a dogstitter AND a babysitter. It’s going to be so easy! Rocky looks really sweet and the only thing Bernie has to check is that he doesn’t eat chocolate. Simple! Bernie just sits him on the floor of the living room and starts playing video games. Of course, Rocky finds a way to eat chocolate and gets out of control! Corneil and Bernie will have to find a way to hide the situation from Mrs. Solo and Rocky’s grandma who is about to come back!
Penelope and her dog Clovis have been absolutely silent for days! To Penelope’s mother, Bernie seems to be such a perfect dogsitter that she offers him a lot of money if he finds a way to make Clovis bark again and therefore Penelope talk. But everything he tries is a failure, so Corneil decides to help him. While he experiments a new method on Clovis, Corneil hypnotizes Bernie who starts acting like a dog!
Corneil, under the nickname of Buttercup, secretly chats a girl named Eglantine on the internet. He really likes her but since he doesn’t want her to know he’s a dog, they promised each other no to meet. But when he discovers Corneil’s secret passion, Bernie pretends to be Buttercup and makes a date with Eglantine who’s not exactly what she’s supposed to be…
Bernie is totally downcast: Romeo has the best scooter he’s ever seen in his life and there is no way Bernie can win the scooter race tomorrow! Bernie buys himself the scooter of his dreams without realizing that it’s a scooter for girls. The scooter’s basket is so cozy that Corneil doesn’t warn him! Bernie now has no other choice than to win the race to shout down all the students that are making fun of him.
On April fool’s day, Bernie is trying everybody’s patience with his jokes. To prove to Corneil that he’s wrong and that his jokes are not kinder garden level, he makes uncle Rico believes that he won the lottery! Overjoyed, uncle Rico announces to Bernie that he gives up his whole life to live his dream in Haiti. How will Corneil and Bernie find a way to fix the damage they’ve caused?
Corneil asks Bernie to bring his urinary test to the veterinary clinic. Bernie spills the whole jar on his way to the clinic and decides to replace its contents by his own urine. When the verdict is announced, what a catastrophe! The doctor is categorical: Corneil has to be on a strict diet if he wants to avoid heart attacks. Bernie freaks out and asks to be on the same diet, which is going to be much harder than he was expecting.