Nando is an ambitious amateur boxer too old for the professional circuit. With no future prospects, other than a security guard or fisherman, Nando makes a decision that will change his future forever: he joins a drug trafficking gang.
Nando and Sérgio arrive in Brazil and meet the drug traffickers. João shows them the handmade submarine. The two friends attempt an escape through the jungle. In Europe, inspectors Carmo and Ortiz continue the investigation.
In the submarine, Nando, Angelito and Walder cross the Atlantic towards Europe. They deal with breakdowns, starve and fight storms. Off the coast of the Azores, inspectors Carmo and Ortiz discover their route and set up an operation.
Failed to deliver the goods in the Azores, they decide to head to the mainland. Valdés sends a ship to meet the submersible, but is warned and leaves them to their fate. Nando decide to sink the submersible and escape the police pursuit.
