A young pregnant woman named Mia escapes from a country at war by hiding in a maritime container aboard a cargo ship. After a violent storm, Mia gives birth to her child while lost at sea, where she must fight to survive.

In the early morning of January 2, 1921, amid a thick fog, the steam Santa Isabel, with 260 emigrants bound for Buenos Aires, sank off the rugged and rugged coast of the island of Sálvora.