Grace, Kat's mother brings home a patient who is afraid of sharks. Kat uses real shark facts to try and ease his fears. Kenny is invited to meet the patient, but decides to eat him instead. Kat decides to take Kenny to the vet, who decides to give him a muzzle. But Kat knows thats not the best solution. Kat's patient is always being attacked by mosquitoes. It dawn's Kat that there is something that makes him attracted to sharks. When Kat does a little detective work she finds out that he feeds seals.
Kat gives an oral science report on her favorite pet Kenny. When she gets home, her father looks for a gift, only to find out Kenny ate it. Using some real facts, Kat tries to get Kenny to eat so much that he'll toss up the gift. But when that doesn't work, she tries to use other methods.
Kat tries to hypnotize herself so she won't forget to renew Kenny's shark tags. But instead she forgets to feed Kenny.
Kenny decides to become a mascot for the local hockey team to pay for his food bills, but when the crowd finds out Kenny is a real shark, things go crazy.
Kenny can't sleep and convinces Kat to sneak out and hit the town; how will Kat stay awake night after night?
A retired shark hunter moves into the neighborhood, so Kat disguises Kenny in a dolphin suit to protect him.
Kat finds a lost parrot and decides to bring it home so when she does she gives 100% attention on the parrot. Soon Kenny gets jelous of the parrot so they get into a big fight and when they do they cause a big mess , and Kat gets the blame for it. But Kenny and the parrot finaly come to their senses and clean the mess themselves and later The Parrots owner comes to Kats house to get back the Parrot.
Kenny's shark friend Dan comes for an uninvited visit. Dan is turned away, but he threatens to tell Kenny's big secret to Kat if he can't stay.
Kenny joins a mail-order meat-of-the-day club after he promises not to steal food, but who's going to pay the bill?
Kat faces trouble from three popular girls named Phoebe make fun of her. Oh, how they change their tune when they realize Kat has a scary pet shark!
Kat asks Kenny to be a vegetarian with her, but how long can Kenny eat tofu when sharks are meant to eat meat? Tune in to ""Kenny the Veggie"" and find out!
Watching Karl takes a fin-raising turn when baby brother Karl crawls off when Kat leaves him alone with Kenny for a few minutes. Kat and Kenny must catch Karl before Mom and Dad return.
During The Checkup Kat's dentist, Dr. Flossmore, mistakes Kenny for Kat. Kat doesn't correct him; now Kenny has to return for more dental work!
Kenny hijacks a fish truck. Now he has to attend Miss Hattie's Obedience School, but Miss Hattie isn't as nice as she seems.
Kat coaches Kenny for the show American Pet Idol and tries to discover Kenny's super talent. But Kenny's not sure he has one!
Kenny is accused of food thefts all over the neighborhood, only this time he's innocent. The question is "Who Framed Kenny the Shark?"
Kat's new art lessons leave no time for Kenny, who befriends a strange fish, Robbie the Remora, in order to make Kat jealous.
Kenny steals Oscar's soccer ball but loses it. Will Kenny get out of this mess?
It's Kenny's birthday and Kat decides to give sushi for a birthday present but now Kenny is addicted to it.
Kenny's supersensitive shark hearing can't take the screeching when Kat learns to play the saxophone, but he doesn't have the heart to tell her.
Two sneaky little racoons keep on messing with the garbage cans. So Kenny volunteers to stop them. But, they keep pulling tricks on him.
Kenny is in love! He falls for a bull shark named Elly she lives at the aquarium. But Elly isn't impressed by Kenny's attempts to win her heart.
Dad, a hopeless fisherman, is challenged to a bass derby by two jerks. Kat finds a fishing master to help train him.
It's Father's Day and Kenny wants to give dad the perfect gift. But when he try's he might ruin the day for everyone.
After feigning illness the kennel kicks Kenny out and the family has to take him along on their trip.
A bear has escaped the zoo. So Kenny becomes Kat's bodyguard. And there is one more thing when Kenny tries to protect Kat it causes trouble.