Aunt Bertha has come to stay to recover from the shock of her sister moving to Australia taking Bobby, her poodle, with her. Aunt Bertha loved her sister's little dog with a passion. She quickly transfers her affection to Corneil, who basks in all the extra attention... until she starts confusing him with the absent Bobby. How can he convince her to leave?
Corneil and Bernie have gone to visit Bernie's cousins in the country. Corneil finds it difficult to adapt to the country way of life, dogs live outside in kennels and definitely don't eat at the dinner table! He has another shock: they expect him to guard the farm against the coyote. How will Corneil cope?
Corneil is upset about the way dogs are treated, they are not even allowed in some places. When Mrs Solo, the neighbour, hits him over the head with her umbrella, it is the final straw. He decides to take her to court. Corneil prepares a strong case for the hardships dogs suffer and Bernie promises to do everything he can to help... what could go wrong?
Bernie is taking Julie to the school dance. That is, until he trips and breaks his leg. He decides not to tell Julie about his accident, in case she decides to go to the dance with someone else instead. Bernie is convinced she will never find out about his broken leg if he is clever... and has Corneil on hand to help him out.
Corneil is upset to read that dogs only come tenth in a poll of the most highly evolved living beings. He signs up to the study currently being undertaken to back up this claim. Corneil is amused to see his competitors are nothing more than a monkey and a cat... it's going to be a piece of cake to prove dogs are of a superior intelligence... or is it?
Corneil is worried when a baby's pram suddenly appears in the flat, it can only mean one thing, John and Beth are expecting a baby. Bernie warns Corneil his days with John and Beth are numbered, people just don't trust dogs round their babies. Corneil and Bernie go all out to prove Corneil would never be a threat to their future baby. But is it all in vain?
Bernie decides he can make his fortune using Corneil as a dog model. He secretly takes pictures of Corneil for a portfolio and sends it off. Corneil is chosen to model the latest doggy fashions at a catwalk show. Corneil is appalled when he sees what he is expected to wear and only agrees to walk down the runway on one condition...
School is on vacation and Romeo is bored, all his good friends have gone away. The only person left to hang out with is Bernie. Bernie is flattered by the attention but Corneil is not amused, his dogsitter doesn't have time for him any more. Corneil will do anything to prove to Bernie that Romeo is only being friendly because he's got no-one else to talk to.
Everyone is talking about the TV sitcom "The Dog Sitter Show" about a dog sitter and his goofy dog. The show is going to come off air for a while as the dog has been taken ill. Bernie suggests Corneil stand in as a replacement. Amazingly he gets the part. Corneil quickly makes his mark on the show, ensuring the dog sitter is the victim of every gag instead of him.
Corneil has created "Eau de Corneil" cologne. He tries it out on Bernie, it has an amazing effect on the girls at school. Corneil decides to market his perfume, but Bernie tries to persuade him otherwise, how will he compete if everyone else is wearing the cologne too? He goes out of his way to ensure "Eau de Corneil" is never marketed.
Corneil needs a trim. Bernie offers to take him to see his Aunt Gina, who has just opened a new salon - for humans! She is persuaded to trim Corneil instead and tells them to come back the next day. Poor Corneil is terrified, Gina is terrible at cutting human hair, and he dreads to think what she will do to him. But how bad is Gina really at cutting hair?
Corneil wishes he could join Martha's poetry club. Bernie agrees to join the club on his behalf. The initiation test for club entry is tough, but with Corneil's help, Bernie manages to sail through it. Corneil is thrilled when Bernie is accepted as a member, but the club does not live up to Bernie's expectations...
Corneil has had enough of Bernie's lies, especially when he claims John and Beth said he could have their invite to a celebrity party before they went away. Corneil rips up the invitation, only to discover that Bernie was telling the truth for once. Corneil needs to find a way to get Bernie into this party to make amends, but will he have to lie to do so?
Bernie is in trouble at school, the principal wants to see his uncle to talk about his attitude. Uncle Rico is determined to help his nephew see his education through, especially as he didn't - something he regrets to this day. Corneil and Bernie need to come up with a way of getting Uncle Rico to convince the principal she should keep Bernie on at school.
Bernie and Corneil are on vacation with John and Beth. Bernie is fed up of Corneil constantly contradicting everything he says. When Corneil tells Bernie the souvenir he has just bought is a fake, and not a relic from a nearby temple, it is the last straw. Bernie is determined to prove Corneil wrong, whatever the consequences.
Corneil overhears Romeo talking on the phone and tells Bernie what he heard. Romeo is amazed when Bernie guesses the top secret purchase he has made. Bernie laughs it off, claiming to be telepathic. Martha challenges him to prove his powers. Bernie is determined not to lose face in front of his friends and turns to Corneil for help.
Romeo is freaked out when the living room at John and Beth's is tidied up while they are all in the kitchen. Bernie tells him not to worry, it's only the ghost that haunts the apartment. Martha is sceptical and wants to see the ghost for herself. But will the ghost appear? And who will be most scared?