Missing

When their plane crashes on a school trip to Paris, there are only 8 survivors. The 8 survivors, Cassandra, Melissa, Holland, Michael, Zach, Elliot, Julie, and Seth slowly come to terms with the fact they they are completely alone on a deserted island. And to make matters worse the are at an extremely limited supply of food and warmth. There is no obvious way off the island, so how are people from there group disappearing? Where are they going?