简介： Anintrospectivejourneyonthelessonslifehastaught20legendsoftheverticalworld.Attimesbrutallyhonest,othertimespensive,theseathletes'storiesrevealthetriumphofthehumanspirit,andtheprofoundanduniqueconnectionformedastheyovercometheworld'sfiercestphysicalandmentalobstacles.
