After her son goes missing, a broken mother returns months later to the island of El Hierro to identify a body. She finds out her son is not the only one missing.After her son goes missing, a broken mother returns months later to the island of El Hierro to identify a body. She finds out her son is not the only one missing.After her son goes missing, a broken mother returns months later to the island of El Hierro to identify a body. She finds out her son is not the only one missing.