Discovery Channel schedule

When winter slams into the highways of the American Rockies, heavy recovery specialists from four companies race into action, working to clear wrecks and open roads. Whether it's a raging fire or toxic spill, crews roll up ready to battle the wreckage. They've got the equipment and the skills. But with more than a million people depending on the route that crosses these three states every day, the one thing they don't have, is time.