Mare Nostrum is a 1926 American silent war drama film directed by Rex Ingram. It was the first production made by Ingram while in voluntary exile and stars Ingram's wife, Alice Terry. The film is set during World War I, and follows a Spanish merchant sailor who becomes involved with a German spy. It is based on the novel of the same name by Vicente Blasco Ibáñez. Long thought lost, the film has recently been re-discovered and restored. Plot As a young boy growing up in a Spanish family with a long and very distinguished maritime tradition, Ulysses Ferragut is regaled with tales of the sea by his retired uncle, the "Triton" (Apollon), and is particularly fascinated by his claim to have once seen the sea goddess Amphitrite. Though his lawyer father, Don Esteban, wants him to follow in his footsteps, Ulysses becomes a sailor. When he is a grown man (Antonio Moreno), Ulysses uses his life savings to purchase the Mare Nostrum, a fast, modern freighter, and prospers. However, he finally gives in to his wife, Doña Cinta, for the sake of their son Esteban, and agrees to sell his ship. With the outbreak of World War I, however, the enormous profits to be made from the sudden demand for shipping ends this plan. On a stop in Italy, Ulysses visits the ruins of Pompeii, and meets Freya Talberg (Alice Terry) and the learned Doctor Fedelmann. He soon falls in love with Freya (who looks exactly like his uncle's painting of Amphitrite). Though she later informs him that she is an Austrian spy (as is Fedelmann), Spain is neutral and his ardor is undiminished. He agrees to transport Count Kaledine to a secret rendezvous in the Mediterranean. The U-boat U-35 surfaces, takes on fuel from Ulysses' ship, and departs with Kaledine. Meanwhile, young Esteban leaves home without permission to find his father. After a week waiting for Ulysses at his lodgings, Esteban goes back to Barcelona aboard the Californian, a British passenger ship. However, the boy is killed when the Californian is sunk by the U-35. Ulysses learns of his son's fate from a survivor, and realizes to his grief his role in the tragedy. He vows to avenge his boy. Upon hearing of the death, Freya sends Ulysses a letter denouncing the barbarity of the act; it is intercepted by Doctor Fedelmann. That, along with Freya's admission she