New York, early 1930s. A mysterious, laconic Irish colossus known as 'Giant' sweats blood, along with his fellow immigrants, to build the skyscrapers of Rockefeller Center. For a while, he has not received a reply to the typewritten letters he continues to send, as well as money, to the other side of the ocean, to Mary Ann, the wife of one of his colleagues who died accidentally. Giant, who seems to be afraid of nothing, still has not found the courage...