WARNING: The following article contains spoilers for "The Blood of Sanctum," the Season 6 finale of The 100.
The penultimate season of The 100 has come to a close and, with it, the main characters' initial adventures on the faraway world of Sanctum. However, as the series moves closer to its seventh and final season, the resulting finale leaves behind more questions than it answers as the conflict between the last survivors from Earth and the Primes ruling Sanctum comes to its violent climax, with not every character surviving.
Picking up from the previous episode's cliffhanger, the Prime leader Russell led his fellow Primes in an effort to seize control of the Eligius IV spaceship, which had brought the last remnants of humanity to Sanctum. With Madi, leader of the Wonkru tribe, held hostage along with her loyal bodyguard Gaia, Russell seemed poised to be successful in his plot to wipe the minds of those present with the techniques he had used for centuries to transfer the Primes' consciousnesses into new host bodies.
Abby Griffin was the latest victim of this process, the longtime character now replaced by Russell's wife Simone. Fortunately, protagonist Clarke Griffin had successfully posed as Russell and Simone's daughter Josephine for sometime and her ruse pays off onboard the ship.
Forced to reveal her true identity to prevent Russell from carrying out his plans, Clarke and her adopted daughter Madi tearfully reunite. The girl had been steadily falling under the influence of the memory of a malevolent personality known as the Dark Commander implanted within her, and the surprise reunion weakened the Commander's hold.
Forced to hold herself at gunpoint, the Primes appeared ready to take over the ship and find a new habitable planet before Clarke ejects all the Primes into outer space including Simone still in the body of her mother. Maddened by the loss, Russell attempts to turn the Dark Commander within Madi against her friends and family but Clarke appeals to her inner nature, resulting in Russell's capture.
To ensure Madi won't continue to fall under the Dark Commander's insidious influence, Raven Reyes erases Wonkru's memory drive -- dubbed The Flame -- from the girl, however, the end of the malevolent personality doesn't appear to be definitive. Raven discovers that before his deletion, the Dark Commander was able to upload himself to an unknown location making a future confrontation with the programmed memory an inevitability for the final season. And, additional major loose ends remain for the series back on the surface on Sanctum.
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To cover his escape, Russell had exposed the general populace of Sanctum with red sun toxin resulting in them violently losing control as they were confronted with the murderous truth about the Primes. As the community descends into bloody chaos, Murphy and Emori are able to save their friends before the conflict comes to an end. However, in the aftermath, strange symbols linked to a temporal anomaly previously seen on the planet are found on Octavia's back. The symbols create a strange connection between Octavia and the anomaly, with a woman claiming to be the missing character Diyoza's adult daughter emerging and stabbing Octavia, causing her to suddenly vanish.
With Russell as the only remaining Prime left standing, though imprisoned, and the crew of the Eligius IV victorious in the battle for Sanctum, the win feels like a hollow one. Abby Griffin is dead, the Dark Commander is still presumably on the loose and both Diyoza and Octavia remain missing after their respective encounters with the temporal anomaly. Peace has been restored to the planet, possibly providing the fresh start humanity needs but at a heavy cost. As the dust settles after the bloody conflict against the Primes and their zealous followers, plenty of plot threads remain to be explored in the seventh and final season.
The 100 stars Eliza Taylor, Paige Turco, Marie Avgeropoulos, Bob Morley, Henry Ian Cusick, Lindsey Morgan, Richard Harmon and Tasya Teles.