血、汗和泪到底怎么了？

　　In1970,Blood,SweatandTearswasoneofthebiggestbandsintheworld.Theyhadexplodedonthescenewithbothdaringandpromise,sellingmillionsofrecords,winningmultipleGrammyAwardsincludingAlbumoftheYear(beatingoutTheBeatles'AbbeyRoad)andheadliningthelegendaryWoodstockfestival.IndemandforconcertandTVappearances,BS&Twasadarlingofthemainstreamandrockpress,iconofthecountercultureandinspirationforagenerationofhorn-basedbands.Theirfuturewaslimitless.Andthenitallwentwrong.CreatedwiththefullcooperationofBlood,SweatandTears,thisfeaturedocumentarywilloverflowwithgreatmusic,internationalpoliticalintrigue,compellinghumanmoments,humorandfreshinsightintothisstrangenever-before-toldstoryofatanglewiththeNixonadministration,acontroversialtourbehindtheIronCurtainthatputtheminthecrossfireofapolarizedAmericaandalosttourdocumentarythatmightjustexplainitall