Morning reveals New York harbor, the wharves, the Brooklyn Bridge. A ferry boat docks, disgorging its huddled mass. People move briskly along Wall St. or stroll more languorously through a cemetery. Ranks of skyscrapers extrude columns of smoke and steam. In plain view. Or framed, as through a balustrade. A crane promotes the city's upward progress, as an ironworker balances on a high beam. A locomotive in a railway yard prepares to depart, while an arriving ocean liner jostles with attentive tugboats. Fading sunlight is reflected in the waters of the harbor... The imagery is interspersed with quotations from Walt Whitman, who is left unnamed.

Documents one year in the life of Nanook, an Eskimo (Inuit) and his family. Describes the trading, hunting, fishing and migrations of a group barely touched by industrial technology. Nanook of the North was widely shown and praised as the first full-length, anthropological documentary in cinematographic history.

The water beats relentlessly against the Hell's Mouth (Boca do Inferno), one of the main natural attractions of Lisbon's west coast, filmed from above almost in a vertical plunge onto the deep, rocky ground.