Through the firm support of the woman in her life, immature Trudy Gertrude Ederle battle to get the better of hardship and the animus of a patriarchal society to lift through the rank of the Olympic swim squad. Against all odds, she put her sights on complete a astonishing and unsafe journeying — to go the first adult female to swim across the barbarous 21-mile stretch know as The English language transmission channel.