The BEST Episodes of The 100
Every episode ever - ranked by fan votes!
Last Updated: Sep 19, 2021
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 - Aired Aug 7, 2018
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.
8.28 
#2 - We Are Grounders (2)
Season 1 - Episode 13 - Aired Jun 11, 2014
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.
8.18 
#3 - Praimfaya
Season 4 - Episode 13 - Aired May 24, 2017
It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.
8.17 
#4 - Blood Must Have Blood (2)
Season 2 - Episode 16 - Aired Mar 11, 2015
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.
8.14 
#5 - Perverse Instantiation (2)
Season 3 - Episode 16 - Aired May 19, 2016
Our heroes begin to face the reality of their tragic situation. Everyone prepares for a final showdown.
8.10 
#6 - Spacewalker
Season 2 - Episode 8 - Aired Dec 17, 2014
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.
8.01 
#7 - Sleeping Giants
Season 5 - Episode 3 - Aired May 8, 2018
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 - Aired May 3, 2017
Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
7.96 
#9 - Thirteen
Season 3 - Episode 7 - Aired Mar 3, 2016
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.
7.95 
#10 - Perverse Instantiation (1)
Season 3 - Episode 15 - Aired May 12, 2016
Clarke finds hope in the most unlikely place. Alie’s master plan comes together.
7.93 
#11 - Anaconda
Season 7 - Episode 8 - Aired Jul 8, 2020
Clarke confronts a new adversary. A surprising connection takes us back to the past and to the nuclear apocalypse that destroyed the Earth.
7.90 
#12 - Bodyguard of Lies
Season 2 - Episode 14 - Aired Feb 25, 2015
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.
7.89 
#13 - Blood Must Have Blood (1)
Season 2 - Episode 15 - Aired Mar 4, 2015
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 - The Chosen
Season 4 - Episode 12 - Aired May 17, 2017
Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
7.88 
#15 - Long Into an Abyss
Season 2 - Episode 7 - Aired Dec 10, 2014
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.
7.87 
#16 - Coup de Grâce
Season 2 - Episode 11 - Aired Feb 4, 2015
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.
7.86 
#17 - Stealing Fire
Season 3 - Episode 9 - Aired Mar 31, 2016
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 
#18 - Resurrection
Season 2 - Episode 13 - Aired Feb 18, 2015
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 
#19 - Inclement Weather
Season 2 - Episode 2 - Aired Oct 29, 2014
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.
7.84 
#20 - Nevermore
Season 3 - Episode 11 - Aired Apr 14, 2016
Alie forces Raven’s dark side to come out. Jasper’s anger continues to grow. Octavia wrestles with her place in the world. Monty is forced to make a split-second decision.
7.82 
#21 - Red Sky at Morning
Season 3 - Episode 14 - Aired May 5, 2016
Clarke, Bellamy, Octavia, and Jasper hit a tragic roadblock. Raven and Monty make an important discovery.
7.82 
#22 - Pandora's Box
Season 5 - Episode 4 - Aired May 15, 2018
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.
7.82 
#23 - Join or Die
Season 3 - Episode 13 - Aired Apr 28, 2016
Clarke is on a mission that could change everything. Murphy gains insight that might prove useful in ensuring his survival. Kane reaches a breaking point.
7.81 
#24 - Fog of War
Season 2 - Episode 6 - Aired Dec 3, 2014
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.
7.81 
#25 - Damocles (1)
Season 5 - Episode 12 - Aired Jul 31, 2018
Octavia leads her people into war. While behind enemy lines, our heroes must overcome their differences to save Wonkru from extinction.
7.81