The Wild Thornberrys
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The following is a list of episodes in the fourth season of The Wild Thornberrys, listed in production order.

At 11 episodes, this is the show's shortest season, though the episodes were ironically spread out over the longest amount of time. The Wild Thornberrys Movie takes place between the "Sir Nigel" 2-parter and "The Wild Snob-berry".


Image # Title Original air date
TheOriginOfDonniePart1 81 "The Origin of Donnie (Part 1)" August 18, 2001 (2001-08-18)
The 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 Marianne must capture a wild orangutan on film for the foundation.
TheOriginOfDonniePart2 82 "The Origin of Donnie (Part 2)" August 18, 2001 (2001-08-18)
Donnie searches the jungles of Borneo for his ancestry, causing Eliza to worry that he will break ties with the Thornberry clan.
TheOriginOfDonniePart3 83 "The Origin of Donnie (Part 3)" August 18, 2001 (2001-08-18)
A fire breaks out in the forest and Donnie is blamed; can Eliza convince it wasn't Donnie and get the animals to safety? Meanwhile, Marianne and Nigel find shelter in a cave nearby, only to get lost inside, and Debbie and Sophie help the village put out the fire, while learning about Donnie's real parents.
TheOriginOfDonniePart4 84 "The Origin of Donnie (Part 4)" August 18, 2001 (2001-08-18)
The rest of the fire is put out by rain, the others are reunited and Donnie is found. The family believe he is going back to his parents, but they soon realize the truth.
SirNigelPart1 85 "Sir Nigel (Part 1)" March 30, 2003 (2003-03-30)
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 accept a tenured professorship at Oxford. The prospect of the family settling down upsets Eliza but thrills Debbie. Meanwhile, Eliza rushes to save some golden eagles from eating poisoned meat from a trapper.
SirNigelPart2 86 "Sir Nigel (Part 2)" March 30, 2003 (2003-03-30)
Eliza rescues her golden eagle friend from the trapper and the Thornberry clan rushes to London for Nigel's knighting ceremony. After being knighted, the newly christened Sir Nigel chooses to continue his show over teaching at Oxford much to the annoyance of Debbie and Cordelia.
TheWildSnob-Berry 87 "The Wild Snob-Berry" February 3, 2003 (2003-02-03)
At 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 go exploring with Shane only to discover how thick-headed he really is.
IceFollies 88 "Ice Follies" February 4, 2003 (2003-02-04)
Shane and Eliza are saved by Debbie after their canoe capsizes.
Fool'sGold 89 "Fool's Gold" February 5, 2003 (2003-02-05)
Eliza and Shane plan to go see an old gold mine full of fool's gold, but Eliza gets jealous when Shane invites Debbie along to help with her art project.
ClashandLearn 90 "Clash and Learn" February 6, 2003 (2003-02-06)
Eliza's friend Kit becomes better friends with Shane.
ElizaUnplugged 91 "Eliza Unplugged" June 11, 2004 (2004-06-11)
Shane is ready to leave the Thornberrys to go back to his life as a pop star and Eliza has to be fast to tell Shane her true feelings for him before it's too late. But when Shane and Eliza have a little fight and Shane runs away Eliza must find him to make up and tell him her true feelings. Meanwhile, Marianne fears the girls are getting older and she's losing them. When Shane's plane arrives Shane says goodbye to each Thornberry and shares a kiss with Eliza. Eliza watches his plane take off and disappear from view.
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