An ex-CIA operative is brought back in on a very personal mission and finds himself pitted against his former pupil in a deadly game involving high level CIA officials and the Russian president-elect.

After 125 years in cryosleep, traveling through the stars, our heroes woke up to a new home, a final gift from dearly-departed friends. A place where they can try again. They’re given one simple task: do better. Be the good guys. With this credo in mind Clarke and Bellamy lead a group down to this mysterious world, hoping to start anew, to finally find peace. But old habits die hard and when they stumble across an idyllic society, it quickly becomes clear that not everything on Sanctum is as perfect as it seems. Despite their determination to do better, threats both seen and unseen will once again force our heroes to fight for their lives and the future of humanity.

The fight to survive has torn The 100 apart, turned them against each other, and taken the lives of their closest friends. Last season, our heroes found themselves at the epicenter of both the Grounder world and the struggle for Arkadia’s soul. Despite their best efforts, war appeared unavoidable, until a new, even more dangerous threat – one that had been quietly rising all along – exploded to the surface: ALIE, the A.I. that ended the world, offered relief from pain and eternal life in the “City of Light.” But as her ranks grew, it quickly became clear that she was building an army dedicated to controlling all sentient life on Earth. This was no longer a battle between warring factions; it was a fight for humanity itself. Now, a hard truth lands on the shoulders of those who remain. Will they go quietly into the night, or will they find hope and faith in each other, as they face their darkest chapter yet?

Reunited with the survivors of the space-station Ark that fell to Earth, Clarke Griffin and her band of juvenile delinquents have faced death at every turn. Though Clarke was alternately challenged, supported and betrayed by her own people and alliances with the Grounders, they could always find common ground in survival. But victory came with a terrible price. The challenges continue in season three as they not only determine what kind of lives they will build, but what it will ultimately cost them.