The Wild Thornberrys: The Origin of Donnie (2001)
★ 6.9 (9) · 90 min
Directors: Carol Millican · woman Dean Criswell Joseph Scott Ron Noble · man
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.