Oct 15, 1940. Nighttime. The Italian Royal Navy submarine Cappellini is navigating the Atlantic Ocean, under the command of Salvatore Todaro (Favino), when she comes upon a merchant ship sailing with lights out. After the ship suddenly opens fire on the Cappellini, it is quickly sunk. Disobeying orders from his own Fascist command, Salvatore makes a selfless decision - one that puts his crew at great risk, but which also makes history.

Directed by award-winning filmmaker Edoardo de Angelis (Indivisible, The Vice of Hope) who co-authored the screenplay with Sandro Veronesi, and featuring a striking score by Massive Attack’s Robert Del Naja, this tense and exciting anti-war epic eschews sensationalism and sentimentality in order to closely examine the courage of upholding one’s ethics in times of social rupture.