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When Lassie keeps coming home with greasy muck on her legs, Timmy and Boomer investigate, and discover a pool of oil on their property. But Uncle Petrie's investigation of the pool proves to be his undoing.
First Air Date : Sep 12, 1954
Last Air date : Mar 24, 1973
Episode : 591 Episode
Season : 19 Season
Runtime: 24 minutes
Studio: CBS
Country: United States of America
Cast: Hugh Reilly, Josh Albee
