S04E01: The Origin of Donnie (1)

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 Marianne must capture a wild orangutan on film or the foundation will cut their funding.

Season 1

Flood Warning
S1E1 / 01 Sep 1998
Dinner With Darwin
S1E2 / 03 Sep 1998
Bad Company
S1E3 / 08 Sep 1998
Gold Fever
S1E4 / 10 Sep 1998
Matadi or Bust
S1E5 / 15 Sep 1998
Temple of Eliza
S1E6 / 17 Sep 1998
Vacant Lot
S1E7 / 22 Sep 1998
Only Child
S1E8 / 01 Oct 1998
Iron Curtain
S1E9 / 06 Oct 1998
Valley Girls
S1E10 / 13 Oct 1998
Naimina Enkiyio
S1E11 / 22 Oct 1998
Blood Sisters
S1E12 / 27 Oct 1998
Eliza-cology
S1E13 / 05 Nov 1998
Flight of the Donnie
S1E14 / 17 Nov 1998
Lost & Foundation
S1E15 / 16 Mar 1999
Nigel Knows Best
S1E16 / 18 Mar 1999
The Great Bangaboo
S1E17 / 23 Mar 1999
Rumble in the Jungle
S1E18 / 25 Mar 1999
The Dragon and the Professor
S1E19 / 30 Mar 1999
Born to Be Wild
S1E20 / 01 Apr 1999

Season 2

Rebel Without a Trunk
S2E1 / 16 Aug 1999
Pal Joey
S2E2 / 17 Aug 1999
Rain Dance
S2E3 / 18 Aug 1999
Darwin Plays the Palace
S2E4 / 19 Aug 1999
Stick Your Neck Out
S2E5 / 23 Aug 1999
No Laughing Matter
S2E6 / 24 Aug 1999
Chimp Off the Old Block
S2E7 / 25 Aug 1999
Koality and Kuantity
S2E8 / 26 Aug 1999
Chew if by Sea
S2E9 / 30 Aug 1999
Clash of the Teutons
S2E10 / 31 Aug 1999
You Ain't Seen Nothin', Yeti
S2E11 / 01 Sep 1999
On the Right Track
S2E12 / 02 Sep 1999
Polar Opposites
S2E13 / 06 Sep 1999
Two's Company
S2E14 / 07 Sep 1999
Show Me the Bunny
S2E15 / 13 Sep 1999
Reef Grief
S2E16 / 14 Sep 1999
Thornberry Island
S2E17 / 15 Sep 1999
Dances With Dingoes
S2E18 / 16 Sep 1999
Tamper-Proof Seal
S2E19 / 19 Oct 1999
You Otter Know
S2E20 / 20 Oct 1999
Have Yourself A Thornberry Little Christmas
S2E21 / 29 Nov 1999
Luck Be an Aye-Aye
S2E22 / 15 Feb 2000
The Kung and I
S2E23 / 16 Feb 2000
Dear Diary
S2E24 / 17 Feb 2000
Black and White and Mom All Over
S2E25 / 21 Feb 2000
A Tiger by the Tail
S2E26 / 22 Feb 2000
Forget Me Not
S2E27 / 24 Feb 2000
Song for Eliza
S2E28 / 25 Feb 2000
Gift of Gab
S2E29 / 26 Feb 2000
Bogged Down
S2E30 / 06 Mar 2000
Monkey See, Monkey Don't
S2E31 / 06 Mar 2000
Where the Gauchos Roam
S2E32 / 13 Mar 2000
A Shaky Foundation
S2E33 / 13 Mar 2000
Cheetahs Never Prosper
S2E34 / 20 Mar 2000
Gobi Yourself
S2E35 / 20 Mar 2000
Every Little Bit Alps
S2E36 / 27 Mar 2000
Pack of Thornberrys
S2E37 / 27 Mar 2000

Season 3

Dragon Me Along
S3E1 / 12 Sep 2000
Time Flies
S3E2 / 19 Sep 2000
Horse Sense
S3E3 / 26 Sep 2000
Tyler Tucker, I Presume
S3E4 / 02 Oct 2000
Critical Masai
S3E5 / 03 Oct 2000
Queen of Denial
S3E6 / 04 Oct 2000
Island Trade
S3E7 / 05 Oct 2000
Birthday Quake
S3E8 / 06 Oct 2000
The Legend of Ha Long Bay
S3E9 / 10 Oct 2000
Spirited Away
S3E10 / 28 Oct 2000
A Family Tradition
S3E11 / 22 Nov 2000
Happy Old Year
S3E12 / 27 Dec 2000
Happy Campers
S3E13 / 30 Dec 2000
All Work and No Play
S3E14 / 12 Jan 2001
New Territory
S3E15 / 12 Jan 2001
Operation Valentine
S3E16 / 14 Feb 2001
Hello, Dolphin!
S3E17 / 19 Feb 2001
April Fool's Day
S3E18 / 01 Apr 2001
Gem of a Mom
S3E19 / 10 May 2001
The Anniversary
S3E20 / 14 May 2001

Season 4

The Origin of Donnie (1)
S4E1 / 18 Aug 2001
The Origin of Donnie (2)
S4E2 / 18 Aug 2001
The Origin of Donnie (3)
S4E3 / 18 Aug 2001
The Origin of Donnie (4)
S4E4 / 18 Aug 2001
The Trouble With Darwin
S4E5 / 31 Oct 2001
Hot Air
S4E6 / 01 Jun 2002

Season 5

The Wild Snob-Berry
S5E1 / 03 Feb 2003
Ice Follies
S5E2 / 04 Feb 2003
Fool's Gold
S5E3 / 05 Feb 2003
Clash and Learn
S5E4 / 06 Feb 2003
Sir Nigel (1)
S5E5 / 30 Mar 2003
Sir Nigel (2)
S5E6 / 30 Mar 2003
Look Who's Squawking
S5E7 / 04 Apr 2003
Eliza Unplugged
S5E8 / 11 Jun 2004

Lacey Chabert

Eliza Thornberry (voice)

Jodi Carlisle

Marianne Thornberry (voice)

Tim Curry

Nigel Thornberry (voice)

Flea

Donnie Thornberry (voice)

Danielle Harris

Danielle Harris

Debbie Thornberry (voice)

Tom Kane

Darwin (voice)

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