100 years in the future, when the Earth has been abandoned due to radioactivity, the last surviving humans live on an ark orbiting the planet — but the ark won't last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.
The worst episode of "The 100" is "Blood Giant", rated 4.8/10 from 5160 user votes. It was directed by Michael Cliett and written by N/A. "Blood Giant" aired on 9/9/2020 and is rated 1.3 point(s) lower than the second lowest rated, "A Sort of Homecoming".
The red sun derails Clarke's plans.
Director: Michael Cliett
Writer: N/A
Clarke and her friends reckon with all that has happened only to find an unexpected threat looming.
Director: Jessica Harmon
Writer: Sean Crouch
Clarke and Octavia mount a desperate rescue mission as the Disciples close in on what they want.
Director: Ian Samoil
Writer: Kim Shumway
After all the fighting and loss, Clarke and her friends have reached the final battle. But is humanity worthy of something greater?
Director: Jason Rothenberg
Writer: Jason Rothenberg
Lexa tries to maintain peace and order within the clans, and Clarke uncovers a strange and game-changing truth. Meanwhile, a flashback takes us into the darker chapter of humanity’s past.
Director: Dean White
Writer: Javier Grillo-Marxuach
Kane is searching for a peaceful way to handle things but soon realizes he may be forced to resort to drastic measures. Meanwhile, Pike suspects that there may be a leak within the walls of Arkadia. Lastly, Raven has a plan and reaches out to Jasper for help.
Director: John F. Showalter
Writer: Charles Grant Craig
Clarke discovers a shocking truth, and Octavia is forced to make a decision that could have devastating consequences. Meanwhile, Kane and Abby share a moment.
Director: Uta Briesewitz
Writer: Heidi Cole McAdams
Jaha employs a terrifying new method to convince Abby to join his cause, Kane is on a mission, and Bellamy is hit with a hard truth. Meanwhile, Monty finds himself in a precarious situation, and Jasper rushes to save one of his own.
Director: Matt Barber
Writer: Charmaine DeGraté, Javier Grillo-Marxuach
Jaha returns to Polis, and Murphy has a surprise encounter. Meanwhile, Octavia uncovers a clue.
Director: P.J. Pesce
Writer: Justine Juel Gillmer
97 years after a nuclear war, human kind is living in space. 100 juvenile delinquents are sent down to Earth to see if the planet is habitable.
Director: Bharat Nalluri
Writer: Jason Rothenberg
Discovering that Jasper may still be alive, Clarke, Bellamy, Finn, Wells and Murphy head out to find him. On the Ark, Abby is determined to prove Earth is habitable, and enlists a mechanic to craft an escape pod.
Director: Dean White
Writer: Jason Rothenberg
Raven faces an unexpected threat. Clarke must keep the peace among opposing factions in Sanctum.
Director: Tim Scanlan
Writer: Kim Shumway
Clarke is on a mission that could change everything. Meanwhile, Murphy gains insight that might prove useful in ensuring his survival. Lastly, Kane reaches a breaking point.
Director: Dean White
Writer: Julie Benson, Shawna Benson
Clarke, Bellamy, Octavia and Jasper hit a tragic roadblock. Meanwhile, Raven and Monty make an important discovery.
Director: P.J. Pesce
Writer: Lauren Muir, Kira Snyder
Clarke and her friends find themselves on a planet that is not what it seems.
Director: P.J. Pesce
Writer: Erica Meredith
Emori tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza struggle with new ones.
Director: Lindsey Morgan
Writer: Miranda Kwok
Where in the universe is Bellamy Blake?
Director: Aprill Winney
Writer: Jeff Vlaming
Alie forces Raven’s dark side to come out, and Jasper’s anger continues to grow. Meanwhile, Octavia wrestles with her place in the world, and Monty is forced to make a split second decision.
Director: Ed Fraiman
Writer: Kim Shumway
Clarke and her friends struggle with how to proceed after the fate of the world is revealed.
Director: Dean White
Writer: Jason Rothenberg
The burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.
Director: Ed Fraiman
Writer: Justine Juel Gillmer
Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.
Director: Ed Fraiman
Writer: Jason Rothenberg
It's a new day in Sanctum. Clarke, Octavia, Raven and Echo struggle with a new foe.
Director: Amanda Row
Writer: Blythe Ann Johnson
As a dangerous, acidic fog approaches, Clarke, Finn and Wells set out in search of a seaweed-like plant to make an antibiotic poultice for Jasper's wounds, while a vulnerable young girl follows when Bellamy takes a group out hunting for food.
Director: Dean White
Writer: Sarah Fain, Elizabeth Craft
Bellamy, Clarke and Finn try to protect Charlotte when everyone learns she killed Wells. On the Ark, Abby risks getting floated in order to give Raven the chance to launch the escape pod.
Director: P.J. Pesce
Writer: T.J. Brady, Rasheed Newson
Shumway secretly orders one of the 100 to kill Bellamy. Meanwhile, hallucinogenic nuts provide Octavia with an opportunity to help the Grounder escape the camp, and Bellamy and Clarke investigate a nearby underground depot, where they find military weapons.
Director: Matt Barber
Writer: N/A