Sadie, Will, Isla, Anthony, Emily, and Charlie are survivors. They were the six (out of eight) to return from a ski holiday turned nightmare two years ago. Although… nobody knows exactly what happened; the details hushed up via the wealth and connections of Sadie's rich parents.
When an exclusive private island with a mansion for rent goes viral on social media, their graduating class persuades Sadie to rent it for the weekend. The six arrive first by helicopter and wait for the rest of their classmates to join them by boat the next day.
But nobody ever comes.