The WORST Episodes of The 100

Every episode ever - ranked by fan votes!

Last Updated: May 29, 2020

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 - Pilot

Season 1 - Episode 1 - Aired Mar 19, 2014

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.

star 7.37
9,201 votes
Directors: Bharat Nalluri
Writers: Jason Rothenberg
From the Ashes

#2 - From the Ashes

Season 7 - Episode 1 - Aired May 20, 2020

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

star 7.48
684 votes
Directors: Ed Fraiman
Writers: Jason Rothenberg
Earth Skills

#3 - Earth Skills

Season 1 - Episode 2 - Aired Mar 26, 2014

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.

star 7.49
7,623 votes
Directors: Dean White
Writers: Jason Rothenberg
Wanheda (1)

#4 - Wanheda (1)

Season 3 - Episode 1 - Aired Jan 21, 2016

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.

star 7.55
6,020 votes
Directors: Dean White
Writers: Jason Rothenberg
Murphy's Law

#5 - Murphy's Law

Season 1 - Episode 4 - Aired Apr 9, 2014

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.

star 7.55
6,712 votes
Directors: P.J. Pesce
Writers: Rasheed Newson, T.J Brady
Earth Kills

#6 - Earth Kills

Season 1 - Episode 3 - Aired Apr 2, 2014

star 7.55
7,167 votes

#7 - Nevermind

Season 6 - Episode 7 - Aired Jun 18, 2019

Clarke’s past catches up to her.

star 7.56
2,005 votes
Heavy Lies The Crown

#8 - Heavy Lies The Crown

Season 4 - Episode 2 - Aired Feb 8, 2017

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

star 7.60
6,140 votes
Directors: Ed Fraiman
Writers: Justine Juel Gillmer
The Old Man and the Anomaly

#9 - The Old Man and the Anomaly

Season 6 - Episode 8 - Aired Jun 25, 2019

star 7.61
1,864 votes
The Warriors Will

#10 - The Warriors Will

Season 5 - Episode 10 - Aired Jul 17, 2018

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.

star 7.61
2,685 votes
Writers: Julie Benson, Shawna Benson
The Garden

#11 - The Garden

Season 7 - Episode 2 - Aired May 27, 2020

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

star 7.61
276 votes
Directors: Dean White
Writers: Jeff Vlaming
Memento Mori

#12 - Memento Mori

Season 6 - Episode 6 - Aired Jun 11, 2019

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

star 7.61
2,016 votes
Red Sun Rising

#13 - Red Sun Rising

Season 6 - Episode 2 - Aired May 7, 2019

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.

star 7.61
2,145 votes
The Calm

#14 - The Calm

Season 1 - Episode 11 - Aired May 28, 2014

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.

star 7.62
5,889 votes
Directors: Mairzee Almas
Writers: Bruce Miller
His Sister's Keeper

#15 - His Sister's Keeper

Season 1 - Episode 6 - Aired Apr 23, 2014

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.

star 7.63
6,399 votes
Directors: Wayne Rose
Writers: Dorothy Fortenberry, Tracy Bellomo

#16 - Demons

Season 3 - Episode 12 - Aired Apr 21, 2016

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

star 7.63
5,572 votes
Directors: P.J. Pesce
Writers: Justin Juel Gillmer
Day Trip

#17 - Day Trip

Season 1 - Episode 8 - Aired May 7, 2014

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.

star 7.65
6,116 votes
I Am Become Death

#18 - I Am Become Death

Season 1 - Episode 10 - Aired May 21, 2014

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.

star 7.65
5,792 votes
Directors: Omar Madha
Writers: Rasheed Newson, T.J Brady

#19 - Echoes

Season 4 - Episode 1 - Aired Feb 1, 2017

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

star 7.66
6,691 votes
The Face Behind the Glass

#20 - The Face Behind the Glass

Season 6 - Episode 4 - Aired May 21, 2019

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

star 7.66
2,118 votes
Directors: Tim Scanlan
Writers: Charmaine DeGraté

#21 - Sanctum

Season 6 - Episode 1 - Aired Apr 30, 2019

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.

star 7.67
2,353 votes
Terms and Conditions

#22 - Terms and Conditions

Season 3 - Episode 8 - Aired Mar 10, 2016

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.

star 7.67
5,138 votes
Directors: John Showalter
Writers: Charles Grant Craig
The Dark Year

#23 - The Dark Year

Season 5 - Episode 11 - Aired Jul 24, 2018

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.

star 7.67
2,640 votes
Directors: Alex Kalymnios
Writers: Heidi Cole McAdams
The Four Horsemen

#24 - The Four Horsemen

Season 4 - Episode 3 - Aired Feb 15, 2017

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

star 7.67
5,944 votes
Directors: P.J. Pesce
Writers: Heidi Cole McAdams
Unity Day

#25 - Unity Day

Season 1 - Episode 9 - Aired May 14, 2014

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.

star 7.67
5,957 votes
Directors: John Behring
Writers: Kim Shumway, Kira Snyder