Things were looking pretty dire after the events of The 100 Season 3 Episode 15.
With Ontari, the last accessible Nightblood, brain-dead thanks to ALIE, there is apparently no way for anyone to access the kill code in the second AI, the Commander's flame.
Based on these preview photos for The 100 Season 3 Episode 16, however, the group seems to be making a last ditch attempt to defeat the ruthless AI in the red dress – Clarke somehow manages to enter the City of Light and retain her agency, making it possible for her to seek out ALIE's destruction from within.
There, she encounters Jasper and Jaha.
Back in the "real world," the rest of the group holds down the fort in the throne room at Polis.
Check out these preview photos and speculate with us by commenting below! "Perverse Instantiation - Part Two," the second part of the finale, airs this Thursday at 9/8c on The CW.
Inside the City of Light - The 100 Season 3 Episode 16
Clarke has made it inside the City of Light, intending to take ALIE down from the inside. How has she managed to do that without losing her free will, as all of the others who accepted ALIE's chip have?
Business Casual - The 100 Season 3 Episode 16
It's so eerie and interesting that everyone whose mind is now housed in ALIE's City of Light is dressed so "business casual" -- including Jasper, one of the most recent inductees, who would never have dressed like that either on the Ark or on the ground.
Ice Cream - The 100 Season 3 Episode 16
Is that an ice cream cone in Jasper's hand?! He looks pretty happy to see whomever he's addressing. We're guessing it's Clarke, who we know enters the City of Light intending to find the key to ALIE's destruction from the inside.
Retaining Control - The 100 Season 3 Episode 16
Clarke definitely appears to have retained control of herself, despite entering the City of Light, where inhabitants normally becoming mindless, zen ALIE followers. How she manages to do this remains a mystery, for now.
The Gray Corridor - The 100 Season 3 Episode 16
Is Jasper leading Clarke somewhere down this creepy, empty gray corridor? Or has Clarke discovered the mysterious Citadel, uncovered by Raven earlier in the season, and Jasper is simply blocking her way to stop her from destroying ALIE?
Jaha & Company - The 100 Season 3 Episode 16
Looks like Clarke and Jasper have company. Based on this group's outfits and the background, this appears to be in the same gray corridor in the City of Light that Jasper and Clarke find themselves in. Is Jaha still alive in the real world, or did Bellamy kill him when he stopped Jaha from killing Ontari?