Season 4, Episode 6 Danger at 55 Below
First Aired: July 18, 2010
Temperatures plunge to 55 below zero, and Jack narrowly avoids a head-on collision with another truck on a dangerous curve. Meanwhile, Alex picks up a hitchhiker, and Ray drives the steep Atigun Pass, where he has spun out twice.
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- Premiered: June 17, 2007
- Rating: TV-PG
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- Premise: Following six men who haul diamond-mine supplies along frozen-lake roads in Canada's Northwest Territory. (more)