The National Geographic documentary Endurance concerns two expeditions 107 years apart, to the same less-than-welcoming strip of the Antarctic coast. One is the ill-fated voyage of Ernest Shackleton, on the ship bearing this film’s name, to attempt a sea-to-sea crossing of the continent via the South Pole – a mission that infamously fell apart in 1915, when Endurance got crushed in pack ice and sank.]]>