The BEST Episodes of The 100
Every episode ever - ranked by fan votes!
Last Updated: Oct 5, 2019
Network: The CW
Set ninety-seven years after a nuclear war has destroyed civilization, when a spaceship housing humanity's lone survivors sends one hundred juvenile delinquents back to Earth, in hopes of possibly re-populating the planet.
#1 - Damocles (2)
Season 5 - Episode 13
In part two of the fifth season finale, 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.
8.33 
#2 - We Are Grounders (2)
Season 1 - Episode 13
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.
8.23 
#3 - Praimfaya
Season 4 - Episode 13
It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.
8.16 
#4 - Blood Must Have Blood (2)
Season 2 - Episode 16
The journey to the City of Light continues, and Jaha makes a move that shocks Murphy. Clarke receives help from an unexpected source, a visitor surprises Octavia, and Lincoln gets his revenge. Meanwhile, at Mount Weather, Cage moves forward with his mission and Bellamy and the group struggle to break free.
8.16 
#5 - Perverse Instantiation (2)
Season 3 - Episode 16
Our heroes begin to face the reality of their tragic situation. Everyone prepares for a final showdown.
8.09 
#6 - Spacewalker
Season 2 - Episode 8
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.
8.03 
#7 - Sleeping Giants
Season 5 - Episode 3
Bellamy leads the charge investigating a potential way home. Meanwhile, Clarke and Madi deal with the new, uncertain threat to their home.
7.97 
#8 - Die All, Die Merrily
Season 4 - Episode 10
Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
7.96 
#9 - Perverse Instantiation (1)
Season 3 - Episode 15
Clarke finds hope in the most unlikely place. Alie’s master plan comes together.
7.92 
#10 - Thirteen
Season 3 - Episode 7
Lexa tries to maintain peace and order within the clans. Clarke uncovers a strange and game-changing truth. A flashback takes us into the darker chapter of humanity’s past.
7.91 
#11 - Long Into an Abyss
Season 2 - Episode 7
As Abby and Jaha each try to establish their authority, Clarke comes up with a plan to stop the Grounders' attack. At Mount Weather, Jasper, Monty, Miller and Harper plan their escape, as Dr. Tsing and Cage conduct deadly experiments.
7.90 
#12 - Bodyguard of Lies
Season 2 - Episode 14
While preparing for battle, Clarke and Lexa have a heated discussion. Desperate for help, Raven has Wick summoned to the engineering room. Jaha and Murphy encounter a perilous roadblock. Meanwhile, at Mount Weather, Bellamy is in a race against time.
7.90 
#13 - Blood Must Have Blood (1)
Season 2 - Episode 15
Clarke and Lexa prepare for battle, while Raven and Wick experience a major setback. Meanwhile, Octavia and Lincoln are each forced to make a difficult decision. At Mount Weather, Jasper and Maya witness a horrible act, Bellamy follows through on a promise and Cage goes public with powerful information.
7.89 
#14 - Coup de Grâce
Season 2 - Episode 11
Bellamy and Lincoln’s attempt to sneak into Mount Weather has brutal consequences. Abby fights to stay in control as Clarke steps up in her new leadership role. Meanwhile, with Monty and Harper still missing, a desperate Jasper confronts President Wallace and demands answers.
7.88 
#15 - The Chosen
Season 4 - Episode 12
Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
7.88 
#16 - Inclement Weather
Season 2 - Episode 2
A suspicious Clarke confronts President Dante Wallace and demands answers. Kane interrogates one of The 100, and Abby performs emergency surgery. Meanwhile, Octavia resorts to violence to find Lincoln.
7.86 
#17 - Human Trials
Season 2 - Episode 5
Kane leads a mission to make peace with the Grounders. Meanwhile, Jasper agrees to participate in a risky experiment, Lincoln enters a world of pain and President Dante Wallace issues a warning. Finally, Finn’s search for Clarke takes a violent turn.
7.86 
#18 - Stealing Fire
Season 3 - Episode 9
Clarke discovers a shocking truth. Octavia is forced to make a decision that could have devastating consequences. Kane and Abby share a moment.
7.85 
#19 - Resurrection
Season 2 - Episode 13
Clarke begins to question Lexa’s leadership decisions. Abby struggles to help an injured Kane. Indra continues to push Octavia. Meanwhile, at Mount Weather, Jasper steps up into the role of leader, and Cage throws Maya into a life threatening situation.
7.85 
#20 - We Are Grounders (1)
Season 1 - Episode 12
Clarke and Finn escape one dangerous situation only to find themselves faced with a new enemy. Bellamy makes a heroic move to save Jasper. Raven faces a new danger, and Murphy finally gets his revenge. Meanwhile, those remaining on the Ark are coming to terms with the inevitable.
7.84 
#21 - Damocles (1)
Season 5 - Episode 12
In part one of the fifth season finale, Octavia leads her people into war. While behind enemy lines, our heroes must overcome their differences to save Wonkru from extinction.
7.83 
#22 - Red Sky at Morning
Season 3 - Episode 14
Clarke, Bellamy, Octavia, and Jasper hit a tragic roadblock. Raven and Monty make an important discovery.
7.83 
#23 - Fog of War
Season 2 - Episode 6
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.
7.83 
#24 - Adjustment Protocol
Season 6 - Episode 12
A special Naming Day changes everything in Sanctum. Gabriel comes face to face with an old friend.
7.81 
#25 - Rubicon
Season 2 - Episode 12
Tensions between Clarke and Abby come to a head after Clarke crosses the line. Raven helps Bellamy navigate Mount Weather. Jaha and Murphy encounter a stranger who may not be what she seems. Octavia is prepared to fight for someone she loves. Meanwhile, things reach a breaking point at Mount Weather.
7.81