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简介：ThisshortdocumentarylooksatthedeepgorgeoftheFraserRiver,shadowedbythemountainrangesofBritishColumbia.ItisahighwayforthemysteriousmigrationofthePacificsalmon.Therivershallowsappearredwiththeflailingfishastheypushup-rivertospawnanddie.Anaturalwonderpuzzlingtothescientist,thefishmigrationofspringandsummerprovidesrenewedactivityforfishermenandcanneryworkers.…