Season 3 follows the fortunes of a young U-boat crew as they engage in the Battle of the Atlantic, are hunted down by an obsessed Royal Navy Commander (Ray Stevenson) and are sent on a dangerous mission to the Southern Hemisphere. Together they form strong personal alliances under the command of Robert Ehrenberg (Franz Dinda).
A dedicated, strait-laced FBI agent and a street-smart CIA agent are part of a new, clandestine taskforce charged with solving and preventing domestic terrorism in and around New York City.
