When a boy is viciously attacked and bitten in the leg by a pit bull, it is up to the Critter Gitters to capture the offending pooch before he is able to strike again. When animal control arrives to check up on the dog, they receive no cooperation whatsoever from the animal’s equally mangy owner, Mr. Belcher. Professor Headful, who remembers “Darth” from his days as a mailman, devised a plan to capture the dog. Tune in to see if the Critter Gitters act fast enough so that no one else gets hurt.
The Critter Gitters, along with Professor Headful, are hopeful that they can teach “Zeus,” an injured African Grey bird of prey, how to fly again. The Professor decides to take Zeus along with him on a hang-gliding expedition off a cliff top, while Jimmy, Nick, and Annie monitor his progress from inside the Critter Gitter van. The real adventure begins when the Professor is forced to crash land the hang-glider as two kids armed with paintball guns attack him from below. The Critter Gitters will have to act quickly if they hope to aid the Professor and capture the mischievous paintballers.
Champion, a beautiful show-horse, dies mysteriously in a pasture, and the Critter Gitters team is called in to investigate. As Dr. John West and his partner, Dr. Kaitlin Melling explore the causes, another case springs the Critter Gitters into action. Bobby and Susan answers a call from a frightened youngster who has discovered what seems to be a rattlesnake in the kitchen. The coiled snake has the girl’s mother and brother cornered and is ready to strike! The Critter Gitters rush to the scene to rescue the family. Meanwhile, Professor Headful is furiously working in the Critter Gitters laboratory preparing for the Critter Gitters expedition to Costa Rica to track down and capture a terrorizing creature know as the Chupacabra! Tension builds back at the clinic as another horse collapses in the valley and the team tries to solve the mystery of the dying horses.
The saga continues, as the entire valley searches for an answer to the mystery illness striking the horses. At the Road Apple Farm, Patrick, a young blind boy, sits by the horse, sobbing and stroking his mane. Will Dr. West and the Critter Gitters be able to solve this puzzle before even more horses die? Also debuting in this episode is a new flying machine devised by Professor Headful. The next time this contraption will be seen is when the Critter Gitters travel to Costa Rica.
Bobby and Jimmy thought helping out a friend for a week delivering newspapers would be a breeze. Professor Headful saw this as a great opportunity to invent a newspaper-delivering gadget, which he calls "The Paper Shooter." To get familiar with the paper route, Jimmy and Bobby drive through the neighborhood. The farthest house on the route is the home of Ben Richards, the crankiest old man on the route! As they drive by, the old man glares angrily at them, and they hear Mr. Richards barking out orders to the workers as they lay the new sod lawn. The next morning, Mr. Richards finds his entire lawn rolled up! He immediately suspects and accuses the Critter Gitters, since he remembered seeing their van the day before. Tune in to find out how the Critter Gitters clear their name and solve the mystery of the rolled up sod.
Back at school after a week-long absence, Jimmy is confronted by the humorless school principal, Ms. Tart, who demands he explain to the class where he has been. Egged on by his classmates, Jimmy begins to tell the tale of his and the Professor's Costa Rican adventure in search of the mysterious and legendary Chupacabra. Along the way, they meet all kinds of interesting people and experience firsthand the natural beauty and adventure of the Costa Rican landscape. Whether swimming in volcano-heated waters, whitewater rafting or swinging across the jungle canopy on ziplines, there is never a dull moment for the Professor and Jimmy. Meanwhile, unbeknownst to them, Kaitlin arrives in Costa Rica shortly afterwards, having been dispatched by Jimmy's parents to retrieve their son. Luckily for Kaitlin, a nice Costa Rican girl named Annie, who offers to help her track down Jimmy and the Professor, befriends this fish out of water. As Annie tells her new classmates, it is the beginning of a great friendship, one that has ultimately brought her back to the United States as a foreign exchange student.
As Jimmy and Annie continue to tell their awe-struck classmates, things are really beginning to heat up in Costa Rica. The search for the Chupacabra has taken Jimmy and the Professor from the jungle canopy to the beach at Tamarind and eventually into the dangerous estuaries on kayak. Meanwhile, Kaitlin and Annie, who always seem to be one step behind the two adventurers, manage to track them down with the help of a couple of lucky breaks involving Annie's cousin, Juan, and Federico, the Professor's trusty pygmy African tree frog sidekick. However, though Kaitlin and Annie arrive to find Jimmy safe and sound, the Professor has seemingly disappeared. Closer inspection reveals that he has abandoned his kayak and continued on foot into the jungle in a final, desperate attempt to catch a glimpse of the ever-elusive Chupacabra. It is a climactic final pursuit that, as the Professor himself admits to the absolutely riveted classroom, still does not fully uncover the mystery and intrigue of the Chupacabra, a creature undoubtedly best left to the jungle
When a small puppy falls down a storm drain and the Fire Department cannot rescue him, it is once again up to the Critter Gitters to save the day. With the cooperation of two helpful firefighters, the team works to save the dog before the rising waters of the storm drains carry the helpless puppy away. Extra pressure is added when the school principal, Ms. Tart, shows up on the scene because the kids weren't in class. Dr. West also introduces a new pet in this episode, so tune in to see how this new "member" helps the team.
A well-deserved vacation finds Dr. West at a campground in the mountains for a little rest and relaxation. Meanwhile, the Critter Gitters are back at headquarters busy with chores and clinical duties. A strange sequence of events lands them in the middle of a mysterious dog-poisoning escapade. Dr. West too, ends up becoming involved in a series of events that soon transforms his campsite into a makeshift animal clinic.
When a rattlesnake at the beach bites a cat, the Critter Gitters are called into action. Upon arriving at the scene, they meet up with Captain Ron, a harbor patrolman who tells the kids of the tragic death of hundreds of sea lions on San Miguel Island. Intrigued by this and eager to help in any way they can, Jimmy and Nick decide to ride out to the island with Captain Ron, where they eventually meet up with a friendly park ranger, who explains to them that it isn't always possible to save every animal. Meanwhile, back at the clinic, Annie stays up all night with the injured cat, doing the best she can to save its life. After a stern warning from the new school principal, Ms. McCracken, it becomes a race against time for the Critter Gitters to get back from the island before they are suspended.
Someone has been pilfering diamonds from wealthy poodle owners - and it's up to the Critter Gitters to solve the crime! With the help of Professor Headful, our heroes uncover two international thieves who smuggle the jewels with unwitting homing pigeons. The kids capture them in the act during an elaborate sting operation, but the criminals escape to Switzerland. If justice is to be served, there's only one thing to do ... follow them!
Our story continues as the Critter Gitters arrive in Switzerland hot on the trail of the jewel smugglers. Professor Headful and Nick recruit the help of their Swiss friends to track the hapless thieves through the small village of Zermatt. The kids have one last chance to capture the crooks in a high-speed, skier vs. snowboard chase down the slopes of the Matterhorn.
The episode revolves around Rocky, a chimpanzee that accompanies Professor Headful to a hangar to test fly a model of the Rubber Bandit, a plane propelled by the twisting of a huge rubber band. Realizing that Professor Headful misunderstood and is about to test fly the real plane, Rocky decides to run off into town. This brings us to Toys R Us, a store full of toys and other interesting things to play with. Find out if the Critter Gitters can stop Rocky from making too big of a mess
The Critter Gitters are competing in a volleyball tournament but that's not where the competitive edge stops. Adam, in the heat of the moment, bets Federico the Frog in a jumping contest against Psycho Sam (a champion jumper!) ... and the winner takes the loser's frog! What Adam didn't know is that ... Federico can't jump! As the Professor treats his little buddy to a farewell candlelit dinner, the Critter Gitters pull out all the stops to find another jumping frog ... but instead they find an illegal ring smuggling endangered species into the country ... including jumping frogs! Will this discovery get Federico off the hook? Or is this the last we'll see of the little guy...
A sudden mudslide buries a family's backyard ... and their beloved dog, too! Did he make it inside his doghouse before the slide hit? Even if he did, the doghouse was pushed off its foundation and there's no telling where it is now. Watch as the Critter Gitters, with the help of Rocky the Chimpanzee and Rex the Rescue Dog, attempt to locate the doghouse under tons of mud and rescue the dog before the rest of the hill slides down.
A coyote chasing a cat accidentally starts a house fire, but Roy and Angel, the chimpanzee, save the day ... and Annie and her deaf friend, Sara! But the danger isn't over ... the marauding coyote is after the neighborhood's pets and the fish at the local hatchery. Can the Critter Gitters trap this animal ... or is the call of the wild too strong for even the Critter Gitters?
As the Critter Gitters are heading off for Florida to find the mystical manatees, the professor hands them a mission. They must deliver a dolphin communication orb, called the DINGY, to a designated spot off the Florida coast. With the help of the salty Captain Slate, they discover the wonders of undersea life, capture some villains who are stealing from the coral reef, and accomplish their mission for the professor.
The rescue of a baby alligator in the Florida Everglades leads the Critter Gitters to Gatorland Park. While touring the park, Annie ends up lost in the swamp. Adam, Nick, and their guide, Gatorland Gabe, search tirelessly for her. Even Mr. Belcher and Roy join in the search with the aid of a camel. But Annie only finds herself more and more surrounded by alligators. Finally, Nick rescues her with a dazzling display of heroism.
Word comes back from the dolphins that the professor’s DINGHY is malfunctioning and causing chaos in the seas. The Critter Gitters head back to the drop site, but are hindered by an approaching hurricane. True to form, the professor comes through with the latest in underwater transportation technology. In the end, it is the simple courageous act of a little girl that saves the day.
Nick and Annie finally get their chance to do what they had come to Florida for in the first place: search for the mystical manatees. Their quest leads them on an adventure through the untamed wilderness. Aided by clues from Mr. Belcher, and a wayward hermit named Trapper Nelson, they make their way up Crystal River. But when they find themselves surrounded by alligators, the professor picks them up in his amazing new Seair Flying boat. It is from this vantage point in the sky that they find what they were looking for.
Mrs. Heckerman, whose yard has been invaded by hundred’s of turtles, calls upon the Critter Gitters to help solve her dilemma. To their surprise, the Critter Gitters find turtles romping freely throughout the neighborhood. When a giant, 40 lb. turtle lumbers into their kitchen, Mr. Heckerman gulps and lodges an apple core in his throat. Annie springs to action, using the Heimlich maneuver, she saves him from choking. Unfortunately, moments later, the well-intentioned Mr. Belcher trips, tumbling into the swimming pool with a box full of desert turtles. Once again, all of the Critter Gitters spring into action, diving and swimming heroically underwater in a breath-taking finale, rescuing the drowning turtles.
Ranger Rick Kelly calls the Critter Gitters to the lake to help him untangle a Harris hawk, which has been trapped in abandoned fish line. Once the Critter Gitters have rescued the hawk, they discover it has followed them back to their tree house, where it has made itself a new home. In the mean time, after witnessing Splash, a brave labrador rescue a little girl. Dr. West finds himself stranded in the middle of the lake in a sinking rubber raft with Elmer, the local bait and tackle shop owner. Dr. West and Elmer are ultimately saved by the Critter Gitters.
The Critter Gitters have been called to a mountain cabin home, where a bear has broken into the kitchen and ripped through the refrigerator. Ranger Rick Kelly tells the Critter Gitters to notify campers around the area about the hungry bear, which is now on the loose. The Critter Gitters attempt to teach Roy about food, and dealing with wildlife in the wilderness. Unfortunately, Roy is more interested in eating and fishing, than he is about the local bear problem. At the end of the day, all of the Critter Gitters’ resources are called into action, including Sundancer, the Critter Gitters new hawk, to save Roy from the wild, hungry bear.
The Critter Gitters find themselves on a wild sea adventure involving a whale, which has come in too close to shore. Kaitlin bravely skippers a Hobie Cat through the dangerous ocean currents to help save the whale. In the meantime, the rest of the Critter Gitters are left on their own to sail a catamaran for help. Using nautical skills, common sense and Critter Gitter technology, the Critter Gitters once again help save the life of yet another animal.
The Critter Gitters are contestants on a television game show called "Petcha Didn't Know" They compete against the Scranton family for a trip to Spain. Both teams answer puzzling animal questions. The Critter Gitters narrowly win the contest thanks to Angel, their lovable Chimpanzee.
Angelica Prissy challenges Nick to a contest in table manners and etiquette. At risk is the loss of Angel, their chimpanzee. In order to compete in the etiquette contest, Nick must have a dinner companion. Drama unfolds when he invites Annie to be his date for the evening. None other than the famous Leticia Baldwin, the world's foremost authority on etiquette and manners will be the judge.