S5, E6: The Ice Road Truckers face their greatest challenges to date. Lisa takes on the biggest haul of her career, and a huge promotion may be on the line. Maya is still stuck under Phil's wing and she's beginning to wonder if he'll ever let her make a solo run. Dave gets a second chance to prove he deserves to be trucking on the Dalton, while Hugh, Rick and Alex embark on an epic race over one of the longest and most treacherous roads in all of Canada.