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Season 1

  • S01E01 Pilot

    • March 19, 2014
    • The CW

    Ninety-seven years ago, nuclear Armageddon decimated planet Earth, destroying civilization. The only survivors were the 400 inhabitants of 12 international space stations that were in orbit at the time. Three generations have been born in space, the survivors now number 4,000, and resources are running out on their dying "Ark." Among the 100 young exiles are Clarke, the bright teenage daughter of the Ark’s chief medical officer; the daredevil Finn; the brother/sister duo of Bellamy and Octavia, whose illegal sibling status has always led them to flaunt the rules, the lighthearted Jasper and the resourceful Monty. Technologically blind to what’s happening on the planet below them, the Ark’s leaders — Clarke’s widowed mother, Abby; Chancellor Jaha; and his shadowy second in command, Kane — are faced with difficult decisions about life, death and the continued existence of the human race.

  • S01E02 Earth Skills

    • March 26, 2014
    • The CW

    Having discovered that Jasper may still be alive, Clarke, Bellamy, Octavia, Finn and Monty set out on a mission to locate their friend and are shocked at what they find. Meanwhile, on the Ark, Abby is determined to get to Earth, and enlists Raven to craft an escape pod.

  • S01E03 Earth Kills

    • April 2, 2014
    • The CW

    In a desperate attempt to treat Jasper’s festering wounds, Clarke, Finn and Wells set out in search of a seaweed antibiotic. Bellamy and his crew go hunting for food, and are joined by Charlotte, a lovable 13-year-old, who feels safe under Bellamy’s protection. A thick, acidic fog appears, forcing Clarke, Finn and Wells to seek shelter inside an ancient van. While they are trapped, Clarke confronts Wells on his betrayal that resulted in her father’s death.

  • S01E04 Murphy's Law

    • April 9, 2014
    • The CW

    After the shocking death of one of their own, Clarke and Finn grow closer as they try to figure out a way to communicate with the Ark. Bellamy must keep the group from turning on one another as life on Earth takes a desperate turn. Meanwhile, Abby risks having herself floated in order to give Raven the chance to stow-away in the escape pod bound for Earth.

  • S01E05 Twilight's Last Gleaming

    • April 16, 2014
    • The CW

    Clarke’s newfound romance with Finn is threatened. Octavia suffers a blow to the head and wakes up to find a Grounder watching her. On the Ark, Abby exposes Kane’s plan to reduce the population of the Ark. Jaha and Abby notice a signal and realize at least some of the 100 must still be alive on Earth.

  • S01E06 His Sister's Keeper

    • April 23, 2014
    • The CW

    Bellamy leads his crew into Grounder territory as they search for Octavia. Raven can't help but notice the deep connection between Finn and Clarke. Meanwhile, flashbacks reveal Bellamy's and Octavia's childhood on the Ark.

  • S01E07 Contents Under Pressure

    • April 30, 2014
    • The CW

    Clarke and Raven make contact with the Ark, and Abby guides Clarke through a dangerous procedure in a desperate move to save one of their own. Meanwhile, on the Ark, Abby is removed from the council, and former Chancellor Diana Sydney takes her place. Jaha reveals to Abby that there are not enough drop ships for everyone on the Ark to go down to Earth, and Kane begins to deal with his guilt over his recent decision.

  • S01E08 Day Trip

    • May 7, 2014
    • The CW

    Clarke and Bellamy go on a mission to find supplies for approaching winter. Some of the 100 accidentally eat nuts with powerfully hallucinogenic properties and lose their grasp on reality. Meanwhile, Octavia seizes the opportunity to help a friend escape, and a terrifying event brings Clarke and Bellamy closer. On the Ark, Commander Shumway secretly assigns one of the 100 to kill one of his own, and the treacherous actions of Diane Sydney are revealed.

  • S01E09 Unity Day

    • May 14, 2014
    • The CW

    Clarke and Finn attempt to broker peace with the Grounders but all hell breaks loose when Bellamy, Jasper and Raven show up armed and ready for battle. Octavia and Lincoln grow closer. Meanwhile, tragedy strikes during the Unity Day celebration on the Ark.

  • S01E10 I Am Become Death

    • May 21, 2014
    • The CW

    Murphy returns to camp claiming to have been held captive and tortured by the Grounders, and Clarke and Bellamy have very different opinions on how to handle his return. Octavia sneaks away to find Lincoln and returns with a serious warning for the 100. Meanwhile, a mysterious virus strikes camp forcing many to be quarantined, and Jasper pulls off a heroic move.

  • S01E11 The Calm

    • May 28, 2014
    • The CW

    With a low food supply at camp, Clarke and Finn lead a group out to hunt for food and wind up in a compromising position. With Finn’s life in danger, Clarke makes a game-changing decision. Meanwhile, Raven makes Bellamy an offer he can’t refuse. On the Ark – Kane risks his life and is reunited with Chancellor Jaha and Abby.

  • S01E12 We Are Grounders (1)

    • June 4, 2014
    • The CW

    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.

  • S01E13 We Are Grounders (2)

    • June 11, 2014
    • The CW

    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.

Season 2

  • S02E01 The 48

    • October 22, 2014
    • The CW

    Clarke is still alone in the white room, frantically trying to make sense of her bizarre surroundings, while the fate of Bellamy, Finn and Raven is still unknown. Lincoln and Octavia’s daring plan is thwarted and an enemy returns. Meanwhile, Abby, Kane and the survivors of the Ark must face physical and moral dilemmas in their dangerous and beautiful new world. Finally, Jaha makes a heroic decision.

  • S02E02 Inclement Weather

    • October 29, 2014
    • The CW

    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.

  • S02E03 Reapercussions

    • November 5, 2014
    • The CW

    When Clarke discovers a horrifying project being carried out in Mount Weather’s medical ward, she joins forces with an unlikely ally. After Abby confesses to committing a crime, Kane issues an order to have her brutally punished. Meanwhile, Monty warns a distracted Jasper that Clarke could be in trouble, and Octavia continues to fight for Lincoln.

  • S02E04 Many Happy Returns

    • November 12, 2014
    • The CW

    After being betrayed by someone she thought she could trust, Clarke takes matters into her own hands and proves she’s not going down without a flight. Bellamy, Finn and Murphy race against time to save a stranger. Meanwhile, tensions rise between Raven and Wick while working together, and an unexpected reunion occurs.

  • S02E05 Human Trials

    • November 19, 2014
    • The CW

    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.

  • S02E06 Fog of War

    • December 3, 2014
    • The CW

    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.

  • S02E07 Long Into an Abyss

    • December 10, 2014
    • The CW

    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.

  • S02E08 Spacewalker

    • December 17, 2014
    • The CW

    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.

  • S02E09 Remember Me

    • January 21, 2015
    • The CW

    Clarke strikes a deal with Lexa and Indra. Abby and Kane begin to realize that decision making powers are out of their hands. A seething Raven is unable to control her emotions. A bold move threatens to destroy the newly formed alliance between the sky people and the Grounders, and a familiar face haunts Clarke. Meanwhile, back at Mount Weather, Monty comes up with a risky plan.

  • S02E10 Survival of the Fittest

    • January 28, 2015
    • The CW

    Lives are at risk as Clarke and Lexa encounter a new enemy. Bellamy and Lincoln agree to work together to break into Mount Weather. Murphy helps Jaha confront his past. Meanwhile, Indra makes Octavia an offer she can’t refuse.

  • S02E11 Coup de Grâce

    • February 4, 2015
    • The CW

    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.

  • S02E12 Rubicon

    • February 11, 2015
    • The CW

    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.

  • S02E13 Resurrection

    • February 18, 2015
    • The CW

    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.

  • S02E14 Bodyguard of Lies

    • February 25, 2015
    • The CW

    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.

  • S02E15 Blood Must Have Blood (1)

    • March 4, 2015
    • The CW

    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.

  • S02E16 Blood Must Have Blood (2)

    • March 11, 2015
    • The CW

    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.

Season 3

  • S03E01 Wanheda (1)

    • January 21, 2016
    • The CW

    Three months have passed since the tragedy at Mount Weather and our heroes learn that a bounty has been put on Clarke’s head. Unbeknownst to Clarke, a team led by Bellamy and Kane journeys deep into Grounder territory to save her. Meanwhile, Murphy finds his way to the mansion and discovers a very different Jaha on a very different mission.

  • S03E02 Wanheda (2)

    • January 28, 2016
    • The CW

    Bellamy and Kane risk life and limb to rescue Clarke. In an attempt to avoid worrying about her daughter, Abby focuses on whether to open Mount Weather as a medical facility. Murphy plots to betray his former Chancellor.

  • S03E03 Ye Who Enter Here

    • February 4, 2016
    • The CW

    Clarke wrestles with a decision. Bellamy learns that something isn't what it seems. Murphy plots to betray his former Chancellor.

  • S03E04 Watch the Thrones

    • February 11, 2016
    • The CW

    Clarke discovers the mastermind behind a devious plan. Kane struggles to keep the peace. Meanwhile, Jasper’s grief drives him to reckless behavior.

  • S03E05 Hakeldama

    • February 18, 2016
    • The CW

    Pike's twisted crusade threatens Clarke's attempts for peace. Raven becomes a target. Murphy tries to conspire against Jaha.

  • S03E06 Bitter Harvest

    • February 25, 2016
    • The CW

    Clarke is torn between vengeance and mercy. Kane and Octavia work together to avert a disaster. Abby continues to worry about Raven.

  • S03E07 Thirteen

    • March 3, 2016
    • The CW

    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.

  • S03E08 Terms and Conditions

    • March 10, 2016
    • The CW

    Kane searches for a peaceful way to handle things but soon realizes he may be forced to resort to drastic measures. Pike suspects that there may be a leak within the walls of Arkadia. Raven has a plan and reaches out to Jasper for help.

  • S03E09 Stealing Fire

    • March 31, 2016
    • The CW

    Clarke discovers a shocking truth. Octavia is forced to make a decision that could have devastating consequences. Kane and Abby share a moment.

  • S03E10 Fallen

    • April 7, 2016
    • The CW

    Jaha employs a terrifying new method to convince Abby to join his cause, Kane is on a mission. Bellamy is hit with a hard truth. Monty finds himself in a precarious situation. Jasper rushes to save one of his own.

  • S03E11 Nevermore

    • April 14, 2016
    • The CW

    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.

  • S03E12 Demons

    • April 21, 2016
    • The CW

    Jaha returns to Polis. Murphy has a surprise encounter. Octavia uncovers a clue.

  • S03E13 Join or Die

    • April 28, 2016
    • The CW

    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.

  • S03E14 Red Sky at Morning

    • May 5, 2016
    • The CW

    Clarke, Bellamy, Octavia, and Jasper hit a tragic roadblock. Raven and Monty make an important discovery.

  • S03E15 Perverse Instantiation (1)

    • May 12, 2016
    • The CW

    Clarke finds hope in the most unlikely place. Alie’s master plan comes together.

  • S03E16 Perverse Instantiation (2)

    • May 19, 2016
    • The CW

    Our heroes begin to face the reality of their tragic situation. Everyone prepares for a final showdown.

Season 4

  • S04E01 Echoes

    • February 1, 2017
    • The CW

    Clarke and her friends struggle with how to proceed after the fate of the world is revealed.

  • S04E02 Heavy Lies The Crown

    • February 8, 2017
    • The CW

    The burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.

  • S04E03 The Four Horsemen

    • February 15, 2017
    • The CW

    Jaha leads Clarke and Bellamy down a road to possible salvation while tensions rise in Arkadia and Polis.

  • S04E04 A Lie Guarded

    • February 22, 2017
    • The CW

    Continued struggles with leadership and trust in Arkadia and Polis take violent turns while Abby leads a team to a distant location hoping to find answers.

  • S04E05 The Tinder Box

    • March 1, 2017
    • The CW

    Clarke makes a desperate plea with a former allied force in an attempt to avoid a war and ensure the survival of her people.

  • S04E06 We Will Rise

    • March 15, 2017
    • The CW

    Clarke and Roan must work together in hostile territory in order to deliver an invaluable asset to Abby and her team.

  • S04E07 Gimme Shelter

    • March 22, 2017
    • The CW

    Clarke’s arrival on the island quickly takes a turn for the worse. Meanwhile, Bellamy tries to avoid further tragedy in Arkadia.

  • S04E08 God Complex

    • March 29, 2017
    • The CW

    After a disappointing discovery, Clarke and Abby question how far they're willing to go. Meanwhile, Jaha finds a lead to the mysterious Second Dawn.

  • S04E09 DNR

    • April 26, 2017
    • The CW

    Jasper and Bellamy go on a quest. Meanwhile, Clarke struggles to keep the peace after word of Jaha's discovery spreads.

  • S04E10 Die All, Die Merrily

    • May 3, 2017
    • The CW

    Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.

  • S04E11 The Other Side

    • May 10, 2017
    • The CW

    Clarke faces the consequences of her fateful choice.

  • S04E12 The Chosen

    • May 17, 2017
    • The CW

    Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.

  • S04E13 Praimfaya

    • May 24, 2017
    • The CW

    It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.

Season 5

  • S05E01 Eden

    • April 24, 2018
    • The CW

    Clarke struggles to survive on a desolate, scorched earth while her friends in space come across a long-awaited beacon of hope.

  • S05E02 Red Queen

    • May 1, 2018
    • The CW

    Octavia is forced to take guidance from an unlikely ally when the future of the bunker and all those inside it is jeopardized.

  • S05E03 Sleeping Giants

    • May 8, 2018
    • The CW

    Bellamy leads the charge investigating a potential way home. Meanwhile, Clarke and Madi deal with the new, uncertain threat to their home.

  • S05E04 Pandora's Box

    • May 15, 2018
    • The CW

    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.

  • S05E05 Shifting Sands

    • May 22, 2018
    • The CW

    Octavia leads her people towards Shallow Valley against the advice of Clarke and Bellamy. Meanwhile, Kane and Abby adjust to a new set of challenges.

  • S05E06 Exit Wounds

    • June 5, 2018
    • The CW

    Kane’s attempt to prove himself useful tests Wonkru’s allegiance to Octavia. Madi faces an unexpected threat inside Wonkru, forcing Clarke to make an unlikely ally.

  • S05E07 Acceptable Losses

    • June 19, 2018
    • The CW

    Clarke and Bellamy make a startling discovery about Wonkru’s battle plans as Echo risks her friendship with Raven to complete her mission.

  • S05E08 How We Get to Peace

    • June 26, 2018
    • The CW

    Clarke’s determination to protect Madi puts Bellamy in an impossible position.

  • S05E09 Sic Semper Tyrannis

    • July 10, 2018
    • The CW

    The growing fractures in Wonkru threaten to explode once and for all. Meanwhile, in Shallow Valley, Murphy starts a fire, unleashing catastrophic results.

  • S05E10 The Warriors Will

    • July 17, 2018
    • The CW

    Monty strives to show Wonkru an alternative to war, and to the valley itself. Meanwhile, Abby’s health continues to deteriorate, along with McCreary’s patience.

  • S05E11 The Dark Year

    • July 24, 2018
    • The CW

    As Clarke races to save Abby, she learns more about the trials and tribulations Wonkru faced in the bunker, and the impossible decisions they were forced to make in the dark year.

  • S05E12 Damocles (1)

    • July 31, 2018
    • The CW

    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.

  • S05E13 Damocles (2)

    • August 7, 2018
    • The CW

    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.

Season 6

  • S06E01 Sanctum

    • April 30, 2019
    • The CW

    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.

  • S06E02 Red Sun Rising

    • May 7, 2019
    • The CW

    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.

  • S06E03 The Children of Gabriel

    • May 14, 2019
    • The CW

    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.

  • S06E04 The Face Behind the Glass

    • May 21, 2019
    • The CW

    Clarke embraces the traditions of Sanctum and tries to make amends for her past actions.

  • S06E05 The Gospel of Josephine

    • May 28, 2019
    • The CW

    Jordan investigates Sanctum. Meanwhile, Octavia and Diyoza discover the threats of the new planet firsthand. Lastly, Bellamy and Clarke butt heads.

  • S06E06 Memento Mori

    • June 11, 2019
    • The CW

    Diyoza learns more about the mysterious Children of Gabriel while Abby continues searching for a way to save Kane.

  • S06E07 Nevermind

    • June 18, 2019
    • The CW

    Clarke’s past catches up to her.

  • S06E08 The Old Man and the Anomaly

    • June 25, 2019
    • The CW

    Octavia and Diyoza make their way to the mysterious anomaly in search of the Old Man. Meanwhile, Murphy has an offer for Emori.

  • S06E09 What You Take With You

    • July 9, 2019
    • The CW

    Bellamy must venture into enemy territory with an unlikely companion. Meanwhile, Octavia is forced to confront her past.

  • S06E10 Matryoshka

    • July 16, 2019
    • The CW

    Russell seeks justice. Meanwhile, Gabriel must make a difficult choice. Lastly, the Blake siblings reunite.

  • S06E11 Ashes to Ashes

    • July 23, 2019
    • The CW

    Bellamy and Octavia must work together to save their friends. Echo is forced to face her past.

  • S06E12 Adjustment Protocol

    • July 30, 2019
    • The CW

    A special Naming Day changes everything in Sanctum. Gabriel comes face to face with an old friend.

  • S06E13 The Blood of Sanctum

    • August 6, 2019
    • The CW

    Sanctum becomes a battleground between the devout and the non-believers. The mystery of the anomaly deepens.

Season 7

  • S07E01 From the Ashes

    • May 20, 2020
    • The CW

    Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.

  • S07E02 The Garden

    • May 27, 2020
    • The CW

    Echo and Gabriel learn more about Hope and her mysterious past.

  • S07E03 False Gods

    • June 3, 2020
    • The CW

    Raven faces an unexpected threat. Clarke must keep the peace among opposing factions in Sanctum.

  • S07E04 Hesperides

    • June 10, 2020
    • The CW

    Mysterious outsiders arrive with news of Clarke's missing people.

  • S07E05 Welcome to Bardo

    • June 17, 2020
    • The CW

    Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.

  • S07E06 Nakara

    • June 24, 2020
    • The CW

  • S07E07 The Queen's Gambit

    • July 1, 2020
    • The CW

  • S07E08 Anaconda

    • July 8, 2020
    • The CW

  • S07E09 The Flock

    • July 15, 2020
    • The CW