A group of 100 people, aged 18-21, are sent on a ship to colonize a faraway unknown planet. They aren't told how long it will take, all they are told is soon. However, on the ship, there are plenty of things to occupy their time with, like going to the cinema and having a coffee with friends. Everything seems normal until an unauthorized person is found, and they have to hide her from the staff, or she will be sent off to drift forever in space