The Martins' weekend camping trip turns dangerous when a treacherous fog envelops their camping area--and Timmy, stuck in a sinkhole in the swamp while searching for Lassie, is threatened by a maurauding wolf.
The Martins' weekend camping trip turns dangerous when a treacherous fog envelops their camping area--and Timmy, stuck in a sinkhole in the swamp while searching for Lassie, is threatened by a maurauding wolf.
