Season 4

Episode Guide

Origin of Donnie Mini-Series-Part 1

S4 E1
Sep 1, 1998
While the Thornberrys are in Borneo looking for Orangutan, Donnie gets lost in the Rain Forest he was brought up in. As Eliza searches for Donnie she realizes he may be heading home to look for any of his remaining family.

Origin of Donnie Mini-Series-Part 2

S4 E2
Sep 1, 1998
While the Thornberrys are in Borneo looking for Orangutan, Donnie gets lost in the Rain Forest he was brought up in. As Eliza searches for Donnie she realizes he may be heading home to look for any of his remaining family.

Origin of Donnie Mini-Series-Part 3

S4 E3
Sep 1, 1998
While the Thornberrys are in Borneo looking for Orangutan, Donnie gets lost in the Rain Forest he was brought up in. As Eliza searches for Donnie she realizes he may be heading home to look for any of his remaining family.

Origin of Donnie Mini-Series-Part 4

S4 E4
Sep 1, 1998
While the Thornberrys are in Borneo looking for Orangutan, Donnie gets lost in the Rain Forest he was brought up in. As Eliza searches for Donnie she realizes he may be heading home to look for any of his remaining family.

Tyler Tucker, I Presume

S4 E5
Oct 2, 2000
Eliza's adversarial cousin, Tyler, arrives for a four-week visit. The Thornberrys travel down the Congo River in an "African Queen" type boat to film the clawless otter. When Tyler drives the boat without permission, disaster ensues.

Critical Masai

S4 E6
Oct 3, 2000
Eliza and Tyler argue over which one of them would make a better warrior. They challenge each other to find the elusive bushback, but when a lightning storms ignites fires in the Savannah, Eliza and Tyler have to work together.

April Fool's Day

S4 E7
Apr 1, 2001
On April Fool's Day, Eliza and Marianne keep up their yearly tradition of pulling practical jokes on each other. When Tyler tries to top Eliza by pulling off a better prank, he takes it too far and ends up falling into quicksand.

Birthday Quake

S4 E8
Oct 6, 2000
All set to celebrate his thirteenth birthday in the Savannah, Tyler can't wait to accompany Eliza on one of her adventures, but Eliza keeps ditching him so she can help the Elephant Phaedra figure out what's wrong with her cousin, Shango.

Dragon Me Along

S4 E9
Sep 12, 2000
When the Thornberrys visit the Great Wall Of China, Eliza is shocked to find that a poacher has captured her panda friend Shi Shou and his mother. With the help of her e-mail pal, Ling, Eliza tries to rescue the pandas.

Horse Sense

S4 E10
Oct 3, 2000
At the Nadaam Festival, Marianne coaches Eliza for the annual horse race. When Eliza hears that the wild "przwalski" horses are really fast, she ditches her inexperienced horse, Jamyn in hopes of winning.

All Work and No Play

S4 E11
Jan 12, 2001
Eliza and Debbie are supposed to take inventory of supplies, but Eliza is tempted by the call of exploring and leaves to explore a beaver dam.

Queen Of Denial

S4 E12
Oct 4, 2000
When Eliza overhears Tyler complain that she always gets her own way, she vows to Darwin that she'll do everything Tyler's way for a whole day.

Happy Campers

S4 E13
Nov 27, 2000
The Thornberrys visit the "land of happiness" to film the black-necked crane migration dance, but due to tourist limits, only two of them can enter the city. After it is decided that Marianne and Debbie go, Eliza and Darwin sneak inside the border.

Island Trade

S4 E14
Oct 5, 2000
When Debbie drives Eliza and Tyler to the marketplace to trade items, Debbie and Tyler accidentally trade the commvee for a dress that Debbie wants.

Operation Valentine

S4 E15
Feb 14, 2001
When Eliza gets a bad stomach, she assumes the Valentine cookies Debbie baked for Sven made her ill. But when she goes rock climbing with Darwin and Donnie, her pain worsens.

Hot Air

S4 E16
Jun 1, 2002
Eliza tries to talk Darwin into taking a hot air balloon ride, knowing full well that he's afraid of heights. After being pushed around one too many times, Darwin stands up to Eliza and refuses to go.

New Territory

S4 E17
Dec 4, 2000
The Thornberrys run out of gas and meet a family who could be their Aussie doubles. Eliza hits it off with Bethany, but is awkward and overprotective when she realizes she's in a wheelchair.

Hello Dolphin

S4 E18
Feb 19, 2001
When Debbie's e-mail boyfriend, Sven, breaks up with her, Eliza tries to cheer her up by getting a reluctant Debbie to swim with dolphins.

Family Tradition

S4 E19
Nov 22, 2000
Grandma Sophie invites the Thornberrys to the States for Thanksgiving, but Nigel and Marianne must decline due to their deadline to film the rare Fossa. Debbie is furious and Marianne reluctantly sends the girls.

The Trouble With Darwin

S4 E20
Oct 31, 2001
Eliza can't wait to meet her hero, Dr. Jane Goodall, but when Dr. Goodall expresses her disapproval over Eliza keeping Darwin out of the wild, Eliza runs away in despair.

The Anniversary

S4 E21
Dec 11, 2000
Grandma Sophie and Grandpa Frank surprise the Thornberrys with a visit to celebrate their fiftieth anniversary, but when Eliza and Grandpa want to climb Mt. Fuji, everyone thinks they are respectively too young and too old.

Look Who's Squawking

S4 E22
Apr 4, 2003
Eliza is determined to play vet to some penguins, and misinterprets a penguins request for food, bringing the bird to a base for observation.