We've got one major question going into The 100 Season 3 Episode 15, the first of the two-part season finale – what the heck does "perverse instantiation" mean?
After doing a bit of research (thank you, Google!), it appears that the phrase refers to a very specific type of problem with artificial intelligence. "Perverse instantiation" is a type of "malignant failure" in which the AI achieves its given command but does so in an unforeseen and destructive way.
ALIE's entire existence has been one giant problem of perverse instantiation that caused an actual nuclear apocalypse.
Now, after three separate missions to defeat ALIE failed on The 100 Season 3 Episode 14, time is running out, and ALIE's army is ever-growing. As the chipped army closes in on Clarke and the others, will Team Delinquents manage to defeat ALIE?
Perhaps joining up with old frenemy Roan will help. In these recently-released preview photos, we see Roan bound and surrounded by Clarke's crew and later we see Roan leading a bound Clarke before Jaha in Polis.
This juxtaposition seems to suggest that Clarke and Roan have teamed up to infiltrate Polis. But can Roan be trusted not to betray them?
Check out these preview photos and speculate with us by commenting below! "Perverse Instantiation - Part One" airs this Thursday at 9/8c on The CW.
Look Who's Back! - The 100 Season 3 Episode 15
While it's great to see Roan again after his long absence, we have so many questions. Where has Roan been? Is he chipped? Who captured him and how did they do it? We've seen people attempt to overpower Roan before and (except for Lexa) it's pretty much impossible.
Bound Roan - The 100 Season 3 Episode 15
Roan appears to be bound and gagged -- though the delinquents don't seem to be on high alert around him. Is Roan being cooperative?
Unlikely Allies - The 100 Season 3 Episode 15
Roan led Murphy and Clarke to the secret exit out of Polis in the midst of Ontari's coup but then essentially washed his hands of any debt owed to her. What side is Roan on now? And why is Clarke looking at him with the incredulous look on her face?
New Plan - The 100 Season 3 Episode 15
Clarke has her "I've got a plan" face on. Of course she has a plan -- she's Clarke. It may not be an easy or sane plan, but she's got one nonetheless.
Splitting Up - The 100 Season 3 Episode 15
Looks like whatever Clarke's big plan is, it doesn't require a portion of the group to come with them. Here it seems that she is hugging Monty goodbye as they set off to do whatever it is Clarke is planning.
Goodbye for Now - The 100 Season 3 Episode 15
Here we also see Bellamy apparently hugging Jasper goodbye. Looks like Bellamy is headed off with Clarke, on whatever her new mission might be. We can't say we're surprised -- Bellamy and Clarke are definitely a team.