Lucía wakes up in a small, gray room devoid of furniture or windows. She is not alone: three of her best friends are with her. None of them knows where they are, what they are doing there, or how they got there. To make matters worse, the only door is locked. On the opposite wall, a panel with a striking red button and a screen displays a set of numbers: "1 in 1,048,576".The four friends are about to find out just how little they really know each other....Oh, and there's a raccoon, too.