"The 100" is a post-apocalyptic science fiction television series based on the book series by Kass Morgan. The show premiered on The CW in 2014 and follows a group of 100 juvenile delinquents sent back to Earth from a space station called The Ark to determine if the planet is habitable after a nuclear apocalypse. As the teens explore their new environment, they encounter various challenges, including hostile survivors known as the Grounders and mutated creatures. The series delves into themes of survival, morality, and the consequences of human actions, spanning seven seasons before concluding in 2020.