The hidden city inside the mountain is within reach but exploration means convincing locals for help. Temperatures drop to 40 below, threatening ranchers trailblazing the frozen tundra, and an emergency meeting is called to defend the frontier.

Hidden deep in the wilderness of Alaska is the toughest town in America: McCarthy. Locked in winter’s grip, the 42 souls who are brave enough to live here must battle the elements, and each other, to maintain their pioneer way of life.

As seasons change in McCarthy, the town is haunted by its darkest day. The icy ground thaws into a quagmire, and old-timer Tim Mischel is marooned at his remote cabin. Neil and Jeremy’s frozen truce is set on fire.

McCarthy is under attack from awakening bears. Jeremy’s livestock is attacked and he goes on the hunt. While Gary searches for horses spooked by a grizzly.

Winter's grip on McCarthy threatens starvation so locals must brave the frozen wilderness to hunt big game, but when the town's richest landowner begins his secret plan to open the frontier to the outside world, McCarthy could be fractured forever.

In the dying days of winter, McCarthy locals join forces to survive wolf attacks and starvation, but the plan to open the frontier to the outside world turns residents against each other when locals night at the golden saloon turns into a free for all.

The great Alaskan breakup fractures McCarthy. Food is lean for man and beast so locals combat hungry wolves stalking their herds. A last chance treaty between supporters of the new and old goes up in flames. Tim closes up his cabin atop the summit.

Neil pushes the town closer to the edge as he begins the first Mother Lode tour, but complications could spell the end of his life's work. Jeremy and Gary embark on a bear hunt but encounter something even more dangerous.

The last days of winter bring change. The future of town lies in the balance. Jason races the melting river crossings to reach his crashed airplane. Jeremy tests his nine-year-old son with a risky solo dog sled run through the woods.

Spring means locals can finally reach the outside world to resupply. Jeremy walks a bull calf home through bear country and faces off with a hungry black bear. Jason’s brother Eric departs town for a new job, leaving Jason to face the wild alone.

The town meeting erupts over Neil’s power grid, and Jeremy must decide if McCarthy is worth fighting for. This battle has been brewing for years. A showdown is coming.

Hidden in McCarthy is the largest man-made ruin in the world - and Neil wants to open it up to tourists. Jenny finds a secret creek that holds gold and must pack a raft to inspect the claim.

McCarthy’s future lies in the balance as Neil takes the last steps toward making a town-wide electrical grid. Locals are pushed to their limit, so Jeremy calls an emergency meeting to stop Neil’s plans and bring stability back to McCarthy.

The 42 residents of McCarthy are choosing sides in the battle to draw visitors to this historic frontier town, but when a pack of wolves begins stalking the streets of downtown, locals must unite to protect their way of life.

As the battle for McCarthy wages on, a team of experts works to locate the only known entrance into the Mother Lode mine. Locals fight to break free of Neil’s stranglehold on the town by casting their own ammo.

Neil breaks through to the Mother Lode mine; the locals battle waking bears; Jeremy and his son set up a tree stand; Jenny hunts the bear that has been stalking her cabin.

In McCarthy, Neil Darish is on the brink of reopening the Motherlode mine for tourism, but a new arrival puts Neil’s empire at risk. And to grow his family's farm, Jeremy Keller begins a new venture, and an unlikely alliance is formed by two rivals.

Neil seeks help from McCarthy’s unlikeliest resident to pursue his mine tour project. Local legend Tim gets a reminder of home when Mark pays a surprise visit. Jeremy treks to the Mother Lode to see what Neil has in store for the town’s future.

Neil’s new hotel project is over budget so his investing partner moves to push him out of his oldest business. Jeremy and his boys go on a supply run for hay and return with Jason Lobo. Jenny Rosenbaum makes a life-changing discovery.

A new era is upon McCarthy. Big money brings even bigger change as plans for tourism at the Mother Lode mine push forward. And as the last days of winter threaten life as they know it, McCarthy locals must once again band together.

As Jeremy rushes to finish his new barn, he learns shocking news; Jenny gets stranded with her newborn and must fight for their survival.

Neil defies both nature and locals by developing his mine tour. However, a line is drawn in the sand after his secret construction project is discovered. Meanwhile, tragedy forces one of McCarthy's best to fight for their life.

To build out his farmstead, Jeremy must strike a deal with the enemy, but a severe accident may halt his progress for good; Lobo barters for the future of his farm; Neil takes on major upgrades as he prepares to sell the town.

When Jeremy crosses a frozen river in a two-ton bulldozer, he finds himself on thin ice; Jenny takes on a dangerous survival mission with her newborn baby in tow; Neil's business partner returns to town with big news.

After being devastated by a powerful windstorm, it's all hands on deck as the town recovers. Jeremy discovers his barn is destroyed, Mark must clear dangerously damaged trees before it's too late. Lobo makes a tough trip with valuable but fragile loot.