Misterjaw and Catfish are trying to stop a local fishing company from catching all "their" fish, so they take over the cannery. Misterjaw tries his hand as the enterprise's president, with surprising (and amusing) results as he gets greedy. Eventually, the police show up and Misterjaw and Catfish are forced to run for it. Misterjaw runs into the cannery room and winds up as canned fish. Of course, Catfish saves him.

MisterJaw and Catfish are captured by the Dix Sealand aquarium for public display!

Misterjaw climbs up Jack's beanstalk to find a giant's castle with an owner on a diet of fish.

While chasing Harry Halibut, Misterjaw ends up in France.

Misterjaw and Catfish are enjoying a vacation in Venice until they run into two cats with their hunger pangs set on Catfish.

Two Russians throw a mechanical shark overboard into the sea. Meanwhile, Misterjaw has found a new home: a resident's expensive swimming pool. When the owner comes to swim with his rubber horse, Misterjaw leaps out of the water and scares the owner and the rubber horse half to death. All seems calm until the owner rents the female, mechanical robot fish to clear up the matter. A swordfish attacks the robot and bends his sword. When the robot attacks a sea dragon, he finds himself outclassed. Now, Misterjaw attempts to "train" the shark to catch and eat tuna with humorous and disastrous results.

MisterJaw is showing off and scares a fisherman, accidentally swallowing the fisherman's transistor radio. Now with a stomachache, he tries to find a radio repairman. Everywhere that MisterJaw goes, the radio plays a commercial. First, he offends a lady eating ice cream. Then, he "says" just the right thing during a bank holdup. He goes to Pogo Pogo Island to allow the batteries to run down. Tourists win a contest and flood the island.

Misterjaw does a little time-traveling.

There's an ad in Variety from a studio that needs a stand-in for a shark in a new movie. MisterJaw applies for the job. He is not believable as a shark. However, he gets violent and gets the job. He finds that the stand-in does dangerous stunts. When MisterJaw rescues a tied-up girl from dynamite, the dynamite explodes. Next, he is supposed to scare a little old lady. Instead, she pounds him. He greets natives after swimming to an island, but they try to cook him. Determined, he holds out until the script calls for him to dive from a 500-foot tower into a bucket of water. The shark decides to retire from movie work.

MisterJaw and a piranha

MisterJaw goes on a Hawaiian excursion.

Up to his old tricks of scaring someone, MisterJaw picks upon a fisherman's decoy duck.

Misterjaw and Catfish have another episode with Fearless Freddy. Freddy tries so many things to catch Misterjaw, but Misterjaw always outsmarts him.

Misterjaw has his eye on a little fish that is to be his supper. The little fellow runs to Madame Neptune, and she lets him stay in her fish bowl. Misterjaw dons a variety of disguises to snatch his halibut prey from Madame Neptune. He pretends to be a phone repairman to sneak the fish out. Granny gives him the broom. Next, a policeman. Again, the broom... A final surprise provides the perfect finish.

Misterjaw enrolls in a gym to lose some weight. Trouble begins when some neighborhood cats (complete with British accents) set their eyes on having Catfish for lunch!

Two goofy aliens land on Earth and bump into Misterjaw and Catfish. The extraterrestrials believe these two nutty sea creatures are earthlings!

MisterJaw is after the little yellow fish again, but is captured by a Swordfish pool shark, so they play a game of pool for the little fish.

MisterJaw and Catfish find a treasure map. The map leads them to a sunken boat full of cans of tuna fish, but a huge fish, the Codfather, is guarding it. The fish claims all the treasures in the area... as long as it's in the Atlantic or Pacific Ocean! MisterJaw and Catfish keep trying to get rid of the Codfather so that they can eat the tuna.

Misterjaw tries to get Harry Halibut by pretending to be Granny Halibut. Appearances by the "real" Little Red Riding Hood, and The Wolf, add a whimsical touch.

Two fishermen find Aladdin's Lamp. Misterjaw comes along and scares the fishermen away, keeping the lamp. He proceeds to get exactly what he wishes for. He then scares the lamp's genie away.

The boys see a sign on shore: talent is needed for an amusement park water show. Misterjaw feels that he has it, and he applies for the job. He plays the piano for the agent. Misterjaw plays jazz, but the agent doesn't like jazz. Another shark plays classical, which the agent likes better. The other shark dives from a 20-foot pole into a barrel of water. Misterjaw dives from 500 feet into a glass of water. The other shark gets the job. No more show biz for Misterjaw.

Misterjaw finds himself in a haunted sunken ship and being terrorized by its ghostly occupant.

Misterjaw and Catfish terrify a local beach, scaring all the tourists off. Now they have everything to themselves and take up tennis. The clerk at the Freebairn Hotel calls Fearless Freddy: Shark Hunter! Freddy is no match for Misterjaw until he blows up a decoy. When the decoy explodes, Misterjaw asks Catfish, "Why didn't you tell me she was that kind of woman?"

MisterJaw dives on some fish for dinner, but he ends up swallowing a big rock. He tries to catch two pelicans, but they escape. His pal Catfish suggests that he go after a halibut. After all, they are easy targets... but not for MisterJaw, who gets a hankering to eat Harry Halibut. With Catfish's help, MisterJaw comes up with some very imaginative ways to capture his prey!

Pally finds a deal in the newspaper where they can get a deal on fish without hunting for their meals. MisterJaw and Catfish raid a nearby fish market and end up on the lam from the law.

Misterjaw is having trouble catching fish for dinner. When he sees a pelican fly over and dive down, scooping up his dinner, he thinks that flying is the way to catch a meal, so he tries taking to the air, too! He decides to build himself a set of wings so that he can do this. He also finds that flying is more difficult than he thought! A clever ending adds the perfect touch.