Overview
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.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 18 | 42 | |
 | 40 | 65 | |
 | 55 | 79 | |
 | 38 | 62 | |
 | 24 | 48 | |
 | 39 | 63 | |
 | 79 | December 31, 2021 (99) | |
 | - | - | |
 | 53 | 78 | |
 | 17 | 41 |