"Formentera" is a gripping drama that plunges viewers into the dark underbelly of a Mediterranean vacation gone horribly wrong. On the surface, Nina and Ben's idyllic getaway to Formentera appears to be a chance for them to reconnect with each other – sans their daughter, leaving only a tangled web of emotions and unresolved issues in its wake. But when a night out takes an ominous turn, the couple is forced to confront the devastating consequences of their actions, threatening to destroy what's left of their relationship forever.