Polar boss Mark Kohaykewych shakes things up when he brings new soldier Mike Simmons into the winter roads battle. But when the rookie's paired with company wildcard Art Burke, it makes for a rocky trip. Top dog Todd Dewey and rival Darrell Ward both hit a newly opened trail, but when Todd breaks down in the middle of nowhere, he might be out of luck and out of time. Polar veteran Alex Debogorski gets lost and must rely on pure instinct to find his way out. And new business owner Lisa Kelly faces an ice road trucker's nightmare on a dangerous crossing.