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Al and Merv team up for a snowy tug of war; with the Canyon Highway closed, Jamie battles a fuel tanker to keep trains moving; a blockage on the only route through the Cascade Mountains forces MSA into a bold move.
James Luke and the Reliable team contend with two detoured wrecks on the same punishing corner of a narrow route; MSA's Kirpal and sons must stretch a long line to reach a machine stuck on a farm.
Bone-chilling temperatures challenge the teams to pull off recoveries in punishing conditions; Dylan pushes Reliable's military rotator in a new way; media gets a sneak peek at an extraordinary repair effort on Coquihalla, closed after floods.