The 100 (2014– )
22 user 6 critic

Perverse Instantiation: Part Two 

In the second half of the two-part season finale, everyone prepares for a final showdown as they begin to face the reality of their tragic situation in the epic and mind-bending conclusion.


Dean White


Jason Rothenberg (developed by), Kass Morgan (based on the book by) | 4 more credits »




Episode cast overview, first billed only:
Eliza Taylor ... Clarke Griffin
Paige Turco ... Dr. Abigail Griffin
Bob Morley ... Bellamy Blake
Marie Avgeropoulos ... Octavia Blake
Devon Bostick ... Jasper Jordan
Christopher Larkin ... Monty Green
Lindsey Morgan ... Raven Reyes
Richard Harmon ... John Murphy
Isaiah Washington ... Thelonious Jaha
Henry Ian Cusick ... Marcus Kane
Michael Beach ... Charles Pike
Alycia Debnam-Carey ... Lexa
Erica Cerra ... A.L.I.E. / Dr. Becca Franco
Jarod Joseph ... Nathan Miller
Chelsey Reist ... Harper McIntyre


In the second half Clarke manages to get her mother out of A.L.I.E.'s control. Together they put the flame into Clarke by connecting her to Ontari, the Nightblood. Now knowing how to stop A.L.I.E., Clarke goes to the city of light to shut down A.L.I.E.; but shutting down A.L.I.E. has serious consequences. Written by zabeeb aizaz

Plot Summary | Add Synopsis


Drama | Mystery | Sci-Fi






Release Date:

19 May 2016 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


At 20:01, in the City of Light, you can see that Scotiabank is operational in the AI program. See more »


During the final fight scene in the Commander's throne room, grounders continually storm into the room, yet there are multiple shots that show the same amount of bodies are always on the floor. See more »


Becca: Define Perverse instantiation
Alie: The implementation of a benign final goal through deleterious methods unforeseen by a human programmer
Becca: The goal isn't every thing Alie, how you reach the goal matters too.
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

What even
20 May 2016 | by nishkaflowerSee all my reviews

******** SPOILERS***************

So the Kill Switch was an actual switch. I'm not even kidding.

The chipped people climbed the outside of the tower? Basically a bad zombie movie flashback.

Ontari was reduced to a blood bag. Oh, and then Abby had split her chest open and massage her heart because being reduced to a blood bag was just not powerful enough. Wow.

Jasper ate an ice cream cone. This isn't the most ridiculous thing about the City Of Light, but it comes pretty close.

Lexa is back, but then she sacrifices herself to an angry mob for Clarke. I would say this is the only not-crappy part of the episode, if it didn't have the "trying to fix the lesbian-killed-by-a-stray-bullet trope a little too late" all over it.

I've seen a lot or TV show rock bottoms but this one takes the cake.

52 of 125 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 22 user reviews »

Contribute to This Page

Free Movies and TV Shows You Can Watch Now

On IMDb TV, you can catch Hollywood hits and popular TV series at no cost. Select any poster below to play the movie, totally free!

Browse free movies and TV series

Stream Popular Action and Adventure Titles With Prime Video

Explore popular action and adventure titles available to stream with Prime Video.

Start your free trial

Recently Viewed