Fifteen strangers take part in an experiment to learn whether such a group can survive in a cramped disaster fallout shelter.

An experiment of psychological effects under stressfull conditions in a shelter. When fifteen strangers are put into a nuclear shelter to see how long they can survive without interaction with the outside, things work out fine.—Marcos Eduardo Acosta Aldrete

Fifteen strangers of various ages and backgrounds are brought together by a scientific experiment in Frankfurt, Germany. They are committed to live for twenty days in a state-of-the-art nuclear fallout shelter. During the first days, they live in harmony, in despite of the cultural differences, the stale food, and the lack of entertainment. But near the end of the experiment, these people find out that a real nuclear attack is in progress. While it is widespread panic outside of the shelter, things take a turn for the worst inside.—Sergio Ortega