Donnie goes missing and the rest of the Thornberry family have various adventures (broken bones, getting lost in a cave, and a forest fire) while looking for him. It has been screened as a TV movie and as four episodes in season 4 of the TV series.
| Release Date | August 18, 2001 | |
|---|---|---|
| Status | Released | |
| Original Title | The Wild Thornberrys: The Origin of Donnie | |
| Runtime | 1h 30min | |
| Budget | — | |
| Revenue | — | |
| Language | — | |
| Original Language | English | |
| Production Countries | United States of America | |
| Production Companies | Klasky-CsupoNickelodeon Animation Studio | |