The best episodes of The 100
Ranked by viewer rating, highs first. Lit marks on the season rail place this list across the run. Vote on a placement to back it or contest it.
- 01
Clarke and her friends must risk everything to fight one last battle for survival, only to glimpse an even darker threat to the last living valley on Earth.
- 02
Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
- 03
It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.
- 04
Octavia leads her people into war. While behind enemy lines, our heroes must overcome their differences to save Wonkru from extinction.
- 05
Jordan investigates Sanctum. Meanwhile, Octavia and Diyoza discover the threats of the new planet firsthand. Lastly, Bellamy and Clarke butt heads.
- 06
Bellamy must venture into enemy territory with an unlikely companion. Meanwhile, Octavia is forced to confront her past.
- 07
Clarke returns to Camp Jaha with devastating news. Finn struggles with the aftermath of his actions. Abby gathers information from an unlikely source and prepares for a fight. Meanwhile, flashbacks reveal Finn and Raven's relationship on the Ark. I
- 08
Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
- 09
Bellamy leads the charge investigating a potential way home. Meanwhile, Clarke and Madi deal with the new, uncertain threat to their home.
- 10
The team on the ground flights to survive the threat they face on the new planet. Meanwhile, Raven must join forces with an unlikely ally to save everyone on board the Mothership.
- 11
Clarke tries to win over the leaders of Sanctum in order to let her people stay. Meanwhile, Bellamy, Echo and Octavia discover a new threat while on a mission to retrieve the transport ship.
- 12
A special Naming Day changes everything in Sanctum. Gabriel comes face to face with an old friend.
- 13
Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.
- 14
Clarke confronts a new adversary. A surprising connection takes us back to the past and the nuclear apocalypse that destroyed the Earth.
- 15
Clarke pleads with Bellamy to do the right thing as conflict on the ground comes to a head. Bellamy forces Octavia to make a difficult decision. Raven and Jasper work against time and Finn makes a bold move. Meanwhile, the situation on the Ark comes to a stunning conclusion.
- 16
Tensions run high between Clarke and Finn, while Raven discovers that Mount Weather is interfering with their communication systems. Meanwhile, Jasper and Monty discover the truth about what's going on at Mount Weather and Octavia comes face-to-face with her worst nightmare. Finally, President Dante Wallace is about to be betrayed by those closest to him.
- 17
Lexa tries to maintain peace within the clans; Clarke discovers an unusual and game-changing truth; flashbacks reveal a dark chapter of humanity's past.
- 18
Perverse Instantiation - Part Two
In the season's epic and mind-bending conclusion, our heroes begin to face the reality of their tragic situation. Everyone prepares for a final showdown.
- 19
Our heroes are forced to rely on the help of Shallow Valley's dangerous new inhabitants in order to save some of their own, with surprising results.
- 20
Still reeling after receiving Monty's message, a small group goes down to explore the mysterious new planet. Back on the Mothership, several members of Wonkru face the consequences of their decisions.
- 21
Clarke embraces the traditions of Sanctum and tries to make amends for her past actions.
- 22
Octavia and Diyoza make their way to the mysterious anomaly in search of the Old Man. Meanwhile, Murphy has an offer for Emori.
- 23
Sanctum becomes a battleground between the devout and the non-believers. The mystery of the anomaly deepens.
- 24
Mysterious outsiders arrive with news of Clarke's missing people.
- 25
The red sun derails Clarke's plans.
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