In colonial Australia, James Morrison is a young teamster who has two friends, Long and Short. He is betrothed to Jane Judd when he visits Sydney and meets fiery Irish girl Biddy O'Shea, who is just off the "wife ship" – a boatload of women from an Irish orphanage bought out to Australia. James is attracted to Biddy and promises to marry her. James returns to Bathurst to break the news to Jane, but his mother dies and makes James promise to marry her daughter. He feels obliged to honour his old commitment to Jane.