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After MacGyver witnesses someone dumping toxic waste that's polluting mountain streams, he and Pete enlist a reclusive mountain man nicknamed "Earthquake" to help lead them to the culprit. Things become complicated, though, as Earthquake's flashbacks to his military service in the Vietnam War make him unstable and threaten their case.
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