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Sam Burke buys a savage German Shepherd named Bismarck after a bobcat depredates his flock of sheep and attacks the Martin stock as well, leaving a lamb orphaned--but Lassie knows that something else was responsible for the killings.
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
