In August of 1914, the British ship Endurance set sail for the South Atlantic. In October 1915, still half a continent away from its intended base, the ship was trapped, then crushed in the ice. For five months, Sir Ernest Shackleton and his men, drifting on ice packs, were castaways in one of the most savage regions of the world. Lansing describes how the men survived a 1,000-mile voyage in an open boat across the stormiest ocean on the globe and an overland trek through forbidding glaciers and mountains.

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.

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.

Tom Crean was the farmer’s son from Kerry who sailed on three major expeditions to the unknown Antarctic over a century ago. He served with both Captain Robert Scott and Sir Ernest Shackleton, spent longer on the ice than either and outlived them both. But Tom Crean returned to Ireland and never spoke about his exploits, taking his incredible story to the grave - until the publication of An Unsung Hero, which unearthed his story and saw him rightfully placed amongst the annals of the great explorers.