October 28, 1940. Along with the Italian army's attack on the Greek-Albanian border, Greece comes under fire from the Italian air force. The submarine Papanikolis, commanded by Captain Milto Iatridis and First Officer Vasilis Aslanoglou, is ordered to patrol the Gulf of Patras. Following the army's victories, the war council decides that it is time for the navy to enter the war and orders the submarine Papanikolis to patrol the Strait of Otranto. There, the crew captures the crew of an Italian ship and their engineer reveals the minefields of the Adriatic. Thus, the Papanikolis begins its mission. After completing its mission, it returns to its base, where it is honored.
Kostas Kazakos
as Miltos Iatridis
Giannis Fertis
as Vasilis Aslanoglou
Emilia Ipsilanti
as σύζυγος Ιατρίδη
Pavlos Liaros
as Ανθυποπλοίαρχος Μπότσαρης
Stavros Xenidis
as Υφυπουργός
Anna Vagena
as Αρραβωνιαστικιά Μπότσαρη
Artemis Matsas
as Ιταλός μηχανικός (αιχμάλωτος)
Vasilis Malouhos
as Κατσικογιάννης
Danos Lygizos
as Εκφωνητής ραδιοφώνου
Giorgos Kyriakidis
as Κυβερνήτης Νηρέα