When the Thornberrys are forced to spend the night in the middle of the savanna, Eliza seizes the opportunity to go hunting with a pride of lions--only to discover that Debbie is about to become a mid…

Annoyed with Eliza, Darwin sets off into the jungle to prove he still has his natural instincts. After a scary night in the jungle, he stumbles upon an empty shack and hides out. When the family who l…

A swarm of mysterious prankster marmosets overrun the Thornberrry camp, and it's up to Eliza to beat them at their own game.

When Eliza and Debbie discover an old treasure map on the Galapagos Islands, they set out to claim their ""riches."" Once the gold is discovered, however, greed sets in and the girls begin an all-out …

When Eliza, Darwin and Donnie are flung from a Matadi-bound barge and stranded on the banks of the Congo river, they must traverse the cliffs and crags of mountainous Zaire in order to catch up with h…

When Eliza discovers a secret temple, a group of jaguars believe that she is their long lost queen. Thrilled with her new royal position, Eliza gets in over her head and must escape the avenging jagua…

As animals flee their homes and run for their lives, Eliza discovers that Kip and Biederman are destroying part of the rainforest. In an all-out war against the evil duo, Eliza must convince the anima…

Eliza's imagination gets the best of her when she thinks a local teenage girl is actually a dolphin who's trying to abduct her sister, Debbie, into a watery world.

Eliza busts a young elephant out of a Kenyan game preserve, only to face predators and poachers who are out to get them.

Eliza and Debbie's combined bungling sends the commvee careening down a mountain, where it lies mired in the mud. They come face to face with a menacing-looking, but quirky tribe of silverback gorilla…

Challenging an ancient Maasai legend, Eliza marches into a ""haunted"" forest to prove her bravery. Now, with night falling, Eliza must place her trust in the mysterious legends of the Maasai in order…

With Nigel and Marianne off exploring bat caves, Eliza and Debbie are left at the ""eerie"" residence of colleague Dr. Renfield. Eliza becomes bent on spooking Debbie, but when her imagination gets th…

Eliza's good-natured intentions of assisting a struggling bird in getting food set off a chain reaction of destruction within the ecological system. It's up to her to retrace her steps and undo all of…

Eliza and Debbie must take over Marianne's duties when she is sick. Debbie goes with Nigel to shoot footage of a condor and Eliza must care for Donnie. Covered with feathers from a pillow, Donnie is s…

When the girls discover that their parents have mistakenly taken embarrassing home movies to an awards banquet, they join forces in order to save face. Their cross-island trip turns into a race agains…

Hungry for adventure, Eliza convinces her mother that she should take a llama over the Andean pass, meeting her family on the other side of the mountain. However, she is disappointed when her safety-c…

When Eliza discovers that a local performer claims he can talk to animals she believes she's found a soul mate. Eliza must enlist the help of some very ""urban"" animals to sneak into the sideshow and…

Eliza convinces a group of baboon-like apes to stand up to their legendary adversaries--""The Others."" Darwin, meanwhile, has met an almost identical group of apes with an identical problem. As Eliza…

Eliza will stop at nothing to get a look at the gigantic, fierce Komodo dragon that lives on the Southeast Asian islands. Her plans are halted by the unexpected arrival of her home-schooling teacher w…

When Eliza sneaks out ahead of her parents in order to find a rare Sumatran rhino, she discovers that to expose his life would only lead extinction of the species. Now instead of taking the prized rhi…

Eliza succumbs to peer pressure from a ""teenage"" elephant, which gets in the way of her closeness with Marianne on an overnight trip.

Eliza convinces a mother kangaroo that she can handle the responsibilities of baby-sitting. She quickly learns that this mischievous joey is more than meets the eye. After a close encounter with Tasma…

With the commvee broken down in the desert and no water left to survive, the Thornberrys go through desperate measures to maintain their sanity. However, on the verge of dehydration, Eliza convinces h…

When Eliza gets a hunch that foul play has led to Darwin's disappearance, she sets out to rescue her long lost companion. To her dismay, she finds Darwin has become one of the most popular acts at an …

Eliza finds a hero in a giraffe who can see distances with his height and warn others of approaching danger. However, to Eliza's dismay, the giraffe leaves the animals for his own needs. Only when Eli…

Eliza frees a hyena from captivity, but having never lived in the wild, it doesn't know how to survive. Eliza attempts to teach it, but it seems hopeless--until a wild boar threatens them and the hyen…

Darwin brings Eliza to his chimpanzee compound, and Eliza, who isn't used to the structure of the chimpanzee way of life, puts Darwin in an uncomfortable situation. After a fire starts, Eliza realizes…

The Thornberrys discover that koalas are missing from their native groves. Eliza decides to unravel the mystery only to discover Kip and Biederman masterminding the evil plot. It is now up to her to s…

When the Thornberrys leave Australia for India, Eliza can't bear to leave her wombat friend, Emily. Even though she is told not to, she brings her along. Now Eliza is constantly forced to re-create Em…

The Thornberrys meet the Fensterkopfs who make false documentaries. The Fensterkopfs' kid lies to Eliza and gets them all stuck on a cliff. After the families barely escape an avalanche, the value of …

To study and protect the snow leopards from extinction and a construction site that is threatening their survival, Nigel's mentor (thought to be lost for many years) has left civilization to be a yeti…

When the Thornberrys are in Finland for the annual reindeer races, Eliza feels left out. She single-handedly uncovers a plot to sabotage the races, and along with an equally excluded reindeer who didn…

When a friendly polar bear is wrongly accused of vicious behavior, Eliza goes to great lengths to keep him from being harmed and learns the value of sticking by a friend in times of trouble.

When Eliza is told that ""Jake"" the turtle is the last one of his kind, she can't just let his species become another name on the extinction list. Enlisting help from other animals, she soon discover…

After Eliza saves an arctic hare from a determined stoat, she learns that underdogs come in all shapes and sizes.

Eliza gets in over her head when she assumes responsibilities she can't handle. She is soon forced to don scuba gear and rescue a fumbling Nigel and a tumbling commvee under the dangerous waters of Au…

The Thornberrys get stranded on an uncharted island, basking at first in all the beauty and the splendor, but discover soon enough that being marooned isn't all it's cracked up to be.

Debbie discovers Eliza ""talking"" to dingoes and threatens to tell her parents. Eliza, concerned about the possibility of being shipped back to the United States as a science experiment, seeks help f…

When the Commvee is surrounded by angry seals, Eliza tries her own methods to get them to move. But she learns from her Inuit friend Jim that traditional ways have their value.

When Kip and Biederman cause an oil spill, Eliza must save her sea otter friends.

Eliza goes to desperate measures to help animals survive during tough times along the Skeleton Coast. Her good-will intentions, however, will soon cost her family their entire supply of holiday cheer-…

When Donnie kidnaps an aye-aye for a pet, Eliza must return the ""bad luck"" omen to his home before the villagers hunt him down.

When the Thornberrys visit the !Kung people, everyone is shocked to discover that Debbie can click-talk. No one is more surprised than Eliza, however, who is only ""cured"" of her jealousy by a !Kung …

When Eliza ""accidentally"" reads Debbie's diary she learns that Debbie thinks she's an embarrassment of a sister. Debbie and Eliza have it out and learn the real truth about their relationship.

When a seemingly abandoned panda bear imprints on Debbie, Eliza doubts Debbie's ""parenting"" ability--until a monsoon convinces Eliza that Debbie can handle more than she lets on.

Eliza reunites with a Siberian Tiger, and is stunned when the tiger turns on her. Eliza's visiting Grandma Sophie helps her overcome her fears just as she is overcoming her own.

When the Thornberrys visit Nigel's friend Jomo, they search for an elephant named Rebecca that Nigel saved 20 years earlier. As the family attends to an elephant stuck in a mudhole, Eliza bonds with R…

When Eliza tries to swim with the humpback whales, Darwin accidentally knocks Debbie's boombox into the ocean, which creates a distrubing noise and causes the whales to stop their ritual singing. Eliz…

Eliza tells Darwin the tale of how she became able to speak to animals, and how she retained her ability to speak to humans as well.

Challenging an ancient Maasai legend, Eliza marches into a ""haunted"" forest to prove her bravery. Now, with night falling, Eliza must place her trust in the mysterious legends of the Maasai in order…

When Eliza meets a group of temple monkeys, they con her into bringing all of her family's food. While Darwin tries to convince her otherwise, Eliza realizes that she's been duped and learns the value…

The Thornberrys are invited on a cattle drive by Marianne's old high school friend whose son, Miguel, is not as adept at riding and roping as he claimed. In the end, Eliza helps him build confidence.

The Thornberrys are visited by the Foundation's head son, Tom, who splits up the Nigel and Marianne team. An over-zealous Tom treats Eliza like a child until he lands the Commvee in a raging river. El…

During a drought, Eliza is forbidden to assist the thirsty animals, but she breaks her promise when she sees a cheetah cub alone on the Savannah. Eliza and Darwin are saved by a timely thunderstorm wh…

Eliza and a Chinese girl, Arioka, secretly switch places so Eliza can ride across the desert on camels and Arioka can ride in the Commvee. But Arioka's parents change their plans and Eliza must figure…

Eliza is afraid to admit to her friend Ben that she doesn't know how to snowboard, just as a rutting ibex is afraid to stand up to another ibex.

Eliza and Debbie are fighting so much, Debbie decides to apply to boarding school and Eliza encourages her. But meeting up with a lone wolf teaches Eliza that families, like packs, belong together.

A trip to the Great Wall of China finds Eliza in hot pursuit of a panda and his mother.

Location: The Florida Everglades, United StatesDebbie and Eliza explore the Everglades but drop Nigel's birthday present, a new watch, into the swamp. As an old woman chases them away, they return at …

In the hope of winning the annual horse race, Eliza trades in her bungling trotter for a swift Thoroughbred.

Eliza's cousin Tyler Tucker joins the Thornberrys for a four-week tour from Africa to the Amazon in search of exotic, endangered and mysterious animals.

Location: Masai Steppe, TanzaniaEliza and Tyler work together to help an aspiring Masai warrior earn the respect of his elders.

Location: The Siwa Oasis, EgyptEliza challenges Tyler to lead the group to safety after they land in an underground burial chamber.

Location: Zanzibar, TanzaniaDebbie and Tyler mistakenly trade the commvee for a dress at an island marketplace; Marianne and Nigel explore the Ngorongoro Crater.

Location: Mt. KilimanjaroTo celebrate his 13th birthday, Tyler and Eliza visit a pair of elephants in the African savanna.

Location: Ha Long Bay, VietnamEliza encounters a mysterious creature while shooting a film with Nigel about manta rays.

Location: The border of Oaxala and Zaachula, MexicoAs the family prepares to film the ""Day of the Dead"" ceremony in a small town, Eliza meets a little girl who tells her about the spirits returning.…

Location: Ankarana, MadagascarThe Thornberrys are preparing for Thanksgiving in Madagascar when Grandma Sophie calls, inviting them home for the holiday. When Nigel and Marianne explain that they can'…

Location: Quito, EcuadorBefore New Year's Eve, Debbie accidentally hurts fer father's feelings, and joins a couple of eccentric, 30's-era volcano chasers, Mitzi and Merrick Dash. Eliza goes after her …

Location: BhutanA trip to Bhutan, finds Marianne and Debbie out in the cold, and Eliza and Darwin on the run from the border police.

Location: Lake Baikal, SiberiaWhen Eliza and Debbie slack off on their chores, they all suffer for it when they fail to prepare of an oncoming storm. Will the Thornberrys survive a flash flood, help s…

Location: Kakadu National Park, Northern Territory, AustraliaThe Thornberrys meet an Australian family named the Gibsons when the Comvee runs out of gas. Eliza makes friends with the youngest member o…

Location: Alice Springs, AustraliaDebbie is finally going to meet her e-mail friend in person and she is determined to make a good impression. Meanwhile, Eliza is having strange pains in her stomach a…

Location: Shark Bay, AustraliaNigel and Marianne are on a dangerous assignment to film some tiger sharks while Eliza goes swimming with some dolphins. Meanwhile, Debbie gets dumped by her e-mail boyfr…

Location: Okavango Swamp, BotswanaIt's April Fools day, and The Thornberrys are trying to outdo each other by way of April Fool's jokes. At first it's a lot of fun, but when Tyler and Eliza encounter …

Eliza and Debbie embark on a dangerous trek in search of precious gemstones.

Mt. Fuji, JapanGrandpa Frank marks the occasion of his 50th wedding anniversary by throwing caution to the wind and joining Eliza on a rigorous mountain climb.

Location: Borneo, IndonesiaThe Thornberrys are preparing for Donnie's ""birthday"" party in Borneo when one crisis after another happens. Grandma Sophie decides to visit the same day Nigel and Mariann…

Location: Borneo, IndonesiaDonnie searches the jungles of Borneo for his ancestry, causing Eliza to worry that he will break ties with the Thornberry clan.

Location: Borneo, IndonesiaA huge fire strikes while Eliza and Darwin search for Donnie, Nigel and Marianne come across poachers, and Debbie and Grandma Sophie get taken in by a native tribe.

Location: Borneo, IndonesiaThe Thornberrys reunite and find Donnie in a remote village and learn from the medicine woman there the terrible fate that befell his parents.

Location: TanzaniaThe Thornberrys are in Africa for the opening of a new chimpanzee sanctuary which will also be attended by Jane Goodall, famous for her work with primates. When Eliza meets her and i…

Location: Rotura, New ZealandThe Thornberrys visit a tribe of native New Zealanders called the Mahris who are throwing a celebration called a ""Hooey"". As Debbie flirts with a young Mahri, Eliza and …

Geographical Location: AlaskaAt the request of the foundation, teenage rocker Shane G. joins the Thornberrys during their stay in Alaska. Since Eliza and Debbie both have a crush on Shane, they both g…

Geographical Location: Alaska

Geographical Location: Yukon-Charley Rivers National Park, AlaskaEliza and Shane plan to go see a old gold mine full of fool's gold, but Eliza gets jealous when Shane invites Debbie along to help with…

Geographical Location: Bethel, Alaska

The Thornberrys pay a visit to Nigel's parents in Scotland at Thornberry Hall right before Nigel is to be made a knight by the Queen of England. Once there, Nigel's mother, Cordelia, presses him to ac…

Eliza rescues her golden eagle friend from the trapper and Thornberry clan rushes to London for Nigel's knighting ceremony. After being knighted, the newly Sir Nigel most choose between becoming a tea…

Filming penguins in Antarctica, Eliza begins practicing for her future profession as a vet, when she comes across a wounded penguin. She rescues her, but may have made matters worse by separating the …

Shane is ready to leave the Thornberrys to go back to his life as a popstar and Eliza has to be fast to tell Shane her true feelings for him before its too late. But when Shane and Eliza have a littl…