Ninety percent of the world’s goods are exchanged through the global shipping trade, out of sight and out of mind on the forgotten spaces of the sea. Filmmakers Allan Sekula and Noël Burch posit that the sea is capitalism’s global trading floor writ large in this wide-ranging essay documentary, which follows a very American invention from the 1950s, the cargo container, aboard ships, barges, trains, and trucks as it covers the planet. We meet the people who run the global transport system—workers, engineers, planners, politicians; the villagers in Holland and Belgium who are forced to give up their land; truck drivers in Los Angeles being paid less than minimum wage; seafarers aboard mega-ships shuttling between Asia and Europe; and factory workers in China, whose low wages are key to the larger puzzle.