After the race to the South Pole ended in 1912 with Roald Amundsen's conquest, Shackleton turned his attention to what he said was the one remaining great object of Antarctic journeying–the crossing of the continent from sea to sea, via the pole. To this end he made preparations for what became the Imperial Trans-Antarctic Expedition, 1914–17. Disaster struck this expedition when its ship, Endurance, became trapped in pack ice and was slowly crushed before the shore parties could be landed. There followed a sequence of exploits, and an ultimate escape with no lives lost, that would eventually assure Shackleton's heroic status, although this was not immediately evident. In 1921 he went back to the Antarctic with the Shackleton-Rowett Expedition, intending to carry out a programme of scientific and survey activities. Before the expedition could begin this work Shackleton died of a heart attack while his ship, Quest, was moored in South Georgia. At his wife's request he was buried there.
To see the motion picture film of the expedition you can visit these links: