Ninety-seven years ago, nuclear Armageddon decimated planet Earth, destroying civilization. The only survivors were the 400 inhabitants of 12 international space stations that were in orbit at the time. Three generations have been born in space, the survivors now number 4,000, and resources are running out on their dying "Ark" - the 12 stations now linked together and repurposed to keep the survivors alive. Draconian measures including capital punishment and population control are the order of the day, as the leaders of the Ark take ruthless steps to ensure their future, including secretly exiling a group of 100 juvenile prisoners to the Earth's surface to test whether it's habitable. For the first time in nearly a century, humans have returned to planet Earth.

For the 100 young people on Earth, however, the alien planet they've never known is a mysterious realm that can be magical one moment and lethal the next. With the survival of the human race entirely in their hands, THE 100 must find a way to transcend their differences, unite and forge a new path on a wildly changed Earth that's primitive, intense and teeming with the unknown... 

Matthew Miller (Human Target, Chuck), Jason Rothenberg (upcoming Twilight Zone film), Leslie Morgenstein (The Vampire Diaries), Gina Girolamo (The Secret Circle)

I like the concept, a lot. Unfortunately, I don't think it's going to work. The clips I saw were intriguing, but reminded me way too much of Fox's (failed) Terra Nova. I hope I'm wrong.