Réponse:
1. After a nuclear war destroyed all living creatures on the planet 97 years ago the humans have to live on a space station named "The Ark".
2. The Ark's life support systems are failing so the authorities have decided to send 100 juvenile on earth.
3. The 100 are delinquents that lived on "The Ark". Their mission is to find out if Earth is habitable again.
4. They must "band" together in order to survive the some people who have apparently survived the nuclear war, they are called the "Grounders".
Explications:
Je ne savais pas si vous deviez donner les réponses en anglais ou en français désolé
