In 1914, Sir Ernest Shackleton set out to the Antarctic in the hopes of making the first land crossing on the continent. His ship, the Endurance, couldn’t complete the journey, and so Shackleton and his crew had to pivot from setting a record to simply surviving. Almost a century later, a group of scientists are determined to find Shackleton’s abandoned ship. This documentary, directed by the award-winning duo behind Free Solo, The Rescue, and Nyad, alternates between The Endurance’s magnificent past and tragic present and mostly succeeds in telling a balanced story. The past, unsurprisingly, is more intriguing. It’s a nail-biting tale of survival, amplified by the use of colorized footage shot by one of the crewmen. The present is informational, but it struggles to match the scope of Shackleton’s journey. Both tales are inspiring nonetheless, and woven together as expertly here, prove to be an educating and entertaining watch.