In an epic adventure, historian Dan Snow follows in the footsteps of the 19th century's last great gold rush. Leading a one-month expedition, he's joined by polar explorer Felicity Aston and remote environment medic Dr. Kevin Fong. Their goal: to strike gold in Canada's frozen wilderness. They'll attempt to retrace a gruelling 600-mile journey through one of the world's last great wildernesses. It'll take them from the coast of Alaska to the gold fields of the Klondike, a remote region on the edge of the Canadian Arctic. This is a journey that was first undertaken more than a century ago by tens of thousands of gold seekers: men and women from around the globe who in the last years of the 19th century dropped everything and set off for the Klondike in the hope of striking it rich. So great were the hardships they encountered that only one in three of those who set off ever made it there. Now, Dan and his team are re-living those struggles and experiences in the hunt for their own gold. In this first episode Dan and his team take on the Alaskan Coastal Mountains, a wall of snow and rock blocking their way to the Klondike and its gold. Following the routes used by the Klondikers, they'll split up to experience two very different gold rush journeys. As they begin their journey to the gold fields, they will have to cross icy rivers and avalanche-prone slopes and climb a near-vertical icy ascent...