Air date: 2018-03-26

Runtime: 44 min

An accident at sea cripples a Royal Navy expedition 200 miles from finding the Northwest Passage, forcing its captains to make dire choices.

Air date: 2018-03-26

Runtime: 41 min

After a long winter trapped in the ice, scouting parties are sent out in search of open water. One of the teams makes a frightening discovery.

Air date: 2018-04-02

Runtime: 41 min

With something now stalking the ships, the captains debate their options, testing their loyalty to one another against their duty to their crews.

Air date: 2018-04-09

Runtime: 45 min

A cunning attack on the ships proves the men are not battling an ordinary bear and that the region's Inuit culture may hold a key to their survival.

Air date: 2018-04-16

Runtime: 41 min

A strange illness begins to show itself while another more familiar one jeopardizes the expedition's most valuable resource: its captain's judgment.

Air date: 2018-04-23

Runtime: 45 min

With the end of their provisions in sight, officers contemplate a tough, risky strategy while struggling to raise the men's worsening spirits.

Air date: 2018-04-30

Runtime: 45 min

As the men make new attempts to find rescue, a series of shocking events underscores how vulnerable and exposed their situation has become.

Air date: 2018-05-07

Runtime: 45 min

Deaths under mysterious circumstances create paranoia among the men, and some of the crew may be considering mutiny.

Air date: 2018-05-14

Runtime: 54 min

Hope comes in strange forms, and the question of what the men are willing to do to survive begins to be settled in both noble and horrifying ways.

Air date: 2018-05-21

Runtime: 52 min

The expedition's epic journey reaches its climax as men find themselves in a final confrontation with the Inuit mythology they've trespassed into.