On Earth's ravaged, postapocalyptic landscape, The 100 are leaders, followers, delinquents and warriors. But most importantly, they are survivors who've learned to collaborate or perish on a planet they once saw as paradise. Their constant struggles tear them apart, turn them against each other and take the lives of their closest friends. Despite their best efforts, all-out war appears unavoidable, until a new, even more dangerous threat explodes...