Susana wakes up after 20 years in a coma. Now a 90s teenager in a 21st century woman's body, Susana will have to navigate a world in which nothing is familiar to her and she will have to learn to live in it.
Ariadna discovers that her grandfather has been searching for the remains of his father, who disappeared during the Civil War. Determined to help him, she travels to Burgos, where a mass grave is being excavated, and where he could be buried. During her stay there, she will learn the story of Antoni Benaiges, a young teacher from Tarragona who was her grandfather's teacher before the war. Through an innovative pedagogical method, Antoni inspired his students and made them a promise: to take them to see the sea.