Season
Episode
- Episode 1: Pilot
- Episode 2: Earth Skills
- Episode 3: Earth Kills
- Episode 4: Murphy's Law
- Episode 5: Twilight's Last Gleaming
- Episode 6: His Sister's Keeper
- Episode 7: Contents Under Pressure
- Episode 8: Day Trip
- Episode 9: Unity Day
- Episode 10: I Am Become Death
- Episode 11: The Calm
- Episode 12: We Are Grounders (1)
- Episode 13: We Are Grounders (2)
The 100 Season 1 His Sister's Keeper
100 years in the future, when the Earth has been abandoned due to radioactivity, the last surviving humans live on an ark orbiting the planet — but the ark won't last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.
