Based on the books by Kass Morgan, this show takes place 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.
Where to Watch The 100
Below you'll find every episode from all 4 season of The 100.
To see what is available free to watch, click the 'Episodes on Sources' tab above.
Season 1Netflix | Rent or Buy
S01 E01Mar 20, 2014
Pilot 97 years after a nuclear war, human kind is living in space. 100 juvenile delinquents are sent down to Earth to see if the planet is habitable.
S01 E02Mar 27, 2014
Earth Skills Discovering that Jasper may still be alive, Clarke, Bellamy, Finn, Wells and Murphy head out to find him. On the Ark, Abby is determined to prove Earth is habitable, and enlists a mechanic to craft an escape pod.
S01 E03Apr 3, 2014
Earth Kills As a dangerous, acidic fog approaches, Clarke, Finn and Wells set out in search of a seaweed-like plant to make an antibiotic poultice for Jasper's wounds, while a vulnerable young girl follows when Bellamy takes a group out hunting for food.
S01 E04Apr 10, 2014
Murphy's Law Bellamy, Clarke and Finn try to protect Charlotte when everyone learns she killed Wells. On the Ark, Abby risks getting floated in order to give Raven the chance to launch the escape pod.
S01 E05Apr 17, 2014
Twilight's Last Gleaming A plan to contact the Ark is put in motion after Raven crash lands on Earth. Meanwhile, Abby exposes Kane's plan to reduce the population of the Ark.
S01 E06Apr 24, 2014
His Sister's Keeper Bellamy, Finn and Jasper head into Grounder territory to search for Octavia, as flashbacks show the siblings' difficult childhood on the Ark. Meanwhile, Raven finds out about Clarke and Finn.
Season 2Netflix | Rent or Buy
S02 E01Oct 23, 2014
The 48 Clarke is still on her own in the white room, frantically attempting to make sense of her bizarre surroundings. Lincoln and Octavia's plan is ruined and an enemy returns.
S02 E02Oct 30, 2014
Inclement Weather Clarke wants answers from the President. Abby performs emergency surgery. Octavia will do anything to find Lincoln.
S02 E03Nov 6, 2014
Reapercussions After discovering a horrifying project in Mount Weather's medical ward, Clarke joins forces with an unexpected ally.
S02 E04Nov 13, 2014
Many Happy Returns Clarke ends up being betrayed by somebody that she trusted. Bellamy, Finn and Murphy attempt to save a stranger.
S02 E05Nov 20, 2014
Human Trials Kane takes part in a mission to make peace with the Grounders. Jasper decides to take part in a risky experiment. Lincoln enters a world of pain and President Dante Wallace issues a warning.
S02 E06Dec 4, 2014
Fog of War Tensions are running high between Clarke and Finn. Raven finds out that Mount Weather is interfering with their communication systems.