On July 12th, 1776, Captain James Cook, already lionized as the greatest explorer in British history, set off on his third voyage in his ship the HMS Resolution. Two-and-a-half years later, on a beach on the island of Hawaii, Cook was killed in a conflict with native Hawaiians. How did Cook, who was unique among captains for his respect for Indigenous peoples and cultures, come to that fatal moment? Hampton Sides’ bravura account of Cook’s last journey both wrestles with Cook’s legacy and provides a thrilling narrative of the titanic efforts and continual danger that characterized exploration.

In August 1897, the young Belgian commandant Adrien de Gerlache set sail for a three-year expedition aboard the good ship Belgica with dreams of glory. His destination was the uncharted end of the earth: the icy continent of Antarctica. But de Gerlache’s plans to be first to the magnetic South Pole would swiftly go awry. After a series of costly setbacks, the commandant faced two bad options: turn back in defeat and spare his men the devastating Antarctic winter, or recklessly chase fame by sailing deeper into the freezing waters.

In the summer of 1913, the wooden-hulled brigantine Karluk departed Canada for the Arctic Ocean. At the helm was Captain Bob Bartlett, considered the world’s greatest living ice navigator. The expedition’s visionary leader was a flamboyant impresario named Vilhjalmur Stefansson hungry for fame. Just six weeks after the Karluk departed, giant ice floes closed in around her. As the ship became icebound, Stefansson disembarked with five companions and struck out on what he claimed was a 10-day caribou hunting trip. Most on board would never see him again.

In July 1881, Lt. A. W. Greely and his crew of 24 scientists and explorers were bound for the last region unmarked on global maps. Their goal: Farthest North. What would follow was one of the most extraordinary and terrible voyages ever made. Greely and his men confronted every possible challenge - vicious wolves, sub-zero temperatures, and months of total darkness - as they set about exploring one of the most remote, unrelenting environments on the planet. In May 1882, they broke the 300-year-old record, and returned to camp to eagerly await the resupply ship. Only nothing came.

The men onboard HMS Terror have every expectation of finding the Northwest Passage. When the expedition's leader, Sir John Franklin, meets a terrible death, Captain Francis Crozier takes command and leads his surviving crewmen on a last, desperate attempt to flee south across the ice. But as another winter approaches, as scurvy and starvation grow more terrible, and as the Terror on the ice stalks them southward, Crozier and his men begin to fear there is no escape.