Tragically, Darrell was on his way to film a docuseries about the recovery of plane wrecks.
Renegade rivals Lisa Kelly and Darrell Ward struggle on a trail at ground zero of the thaw, where getting stuck could sink their company for good.
Their determination to get their loads to their destinations safely and in time is extraordinary.
Does Lisa Kelly have a tattoo? Barely 45 minutes after takeoff, the plane developed a little problem in Clinton, Montana.