正在同步电影信息
Eachyearasmallshorebirdmustmakea10,000-milejourneyfromthesoutherntipofSouthAmericatoitsnestinggroundsintheArctic-oneofthelongestmigrationsonearth.Thispocket-sizedlongdistancetravelertimesitsmigrationpreciselytocoincidewiththeannualspawningofoneofearth'smostancientcreatures:thehorse-shoecrab.It'shorseshoecrabeggsontheDelawareBaythatfuelthelittlebirdsepicjourneytotheArctic.Inthe1990sthefishingindustrydiscoveredthathorseshoecrabsmakegoodbaitforeelandconch.Astheseindustriesboomed,horseshoecrabswerecollectedbythetruckload...andredknotnumbersstartedtocrash.Thestoryoftheredknotandthehorseshoecrabisalivingexampleofhoweveryspeciesisinterconnected-eachoneimportant,nomatterhowbigorsmall.Asthefateoftwoextraordinarycreaturesteetersontheedge,humankindmustgrapplewiththeeconomicsandpoliticsofextinction.