Hierro plot
"A travel. A search. A mystery"
Loving mother Maria brings her 5-year-old son Diego to the remote island of Hierro for a vacation. However, Diego mysteriously disappears from the boat, causing Maria's world to collapse. Six months later, Maria is called to the island because the police have found the body of a dead boy. The police are convinced that it is Diego's body, but according to Maria this is not the case, so a DNA test is done. In the meantime, Maria explores the island, only to discover that around the time of Diego's disappearance, another boy has disappeared. What are the police and the islanders keeping to themselves?