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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.
First Air Date : Sep 12, 1954
Last Air date : Mar 24, 1973
Episode : 591 Episode
Season : 19 Season
Runtime: 24:26 minutes
Studio: CBS
Country: United States of America
Cast: Hugh Reilly, Josh Albee
