The Sicilian Channel is one of the most traffic-intensive areas in the world. In addition to being an ecological corridor for birds migration, it is the crossroads of merchant ships distributing materials for the industry. It is a human migration corridor and the place where fiber-optic cables are laid from Europe to the North African coast, to then continue towards the Middle East and Asia, in an attempt to connect virtually the entire globe. The Upwelling follows some of the fiber optic cables going from Mazara del Vallo, Sicily, to Tunisia. The invisible flow of information goes together with the story of a young migrant telling his journey from Nigeria to Italy.