In Montana, Rich Lewis must defend his home from a mountain lion that has invaded his turf. In New Mexico, after a failed first attempt, Kyle Bell's son Ben steps up again to break a wild young colt. In the Revelation Mountains, a voracious wolverine threatens to derail Marty Meierotto's season for good, and in North Carolina, Eustace Conway puts his wood burning truck to the ultimate test.

When winter unleashes its full fury Kyle and Ben get caught in its crosshairs. In Alaska, Marty's gamble on new country pays off. The polar assault brings Eustace's progress in North Carolina to a standstill. And far north in Maine, Charlie breaks the ice to finally cash in on some fur.