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Mac uncovers an out-of-this-world scam when he investigates some mysterious indentations in a farmer's field.
First Air Date : Sep 29, 1985
Last Air date : May 21, 1992
Episode : 139 Episode
Season : 7 Season
Runtime: 45:14 minutes
Studio: ABC
Country: United States of America
Cast: Richard Dean Anderson, Dana Elcar