The 100 is a sci-fi TV series set in a post apocalyptic future where human civilization has been forced into Earth's orbit due to a nuclear war. When spaceship systems begin to fail and oxygen becomes limited, 100 prisoners are sent down to Earth in a desperate attempt to preserve humankind. The show starts like a shot out of a canon, with prisoners on the ground in the pilot episode, but it really finds it's stride from seasons 2-4. It offers a unique spin on the survival genre, but there's also something poetic about a series named "The 100" having it's series finale on it's 100th episode.