Sanctum is the first episode of the sixth season of The 100.[3] It is the seventy-second episode overall.
Still reeling after receiving Monty’s message, a small group goes down to explore the mysterious new planet. Back on the Mothership, several members of Wonkru face the consequences of their decisions.[4]
Murphy , Emori , Echo and other including shaw wakes up on the mothership to see "Planet Alpha." Raven stroms away being upset about Monty and Harper's death. Everyone in the group meets at the mess hall. Jordan serves them algae. Abby doesn't want to eat because she is more concentrated on Kane's health. Before they leave to the transport ship, Bellamy tells Jordan and raven to stay behind, due to raven being the other only pilot. As the Gagarin flys toward the planet, Raven watches out the window. On the new planet, the group walks together on to land. The air is breathable and the radiation levels are good. Emori tells them that nightblood wasn't needed for the planet. Shaw tells the group that the signal is a couple of click due East. On the mothership, Abby says that she needs blood donations from anyone she can to save Kane. She trys to find the drugs and thinks that Raven has them. Raven give the pills to her saying that I will be easier when she is gone. Back on the planet, the expedition group has set up a camp. Jackson is holding a jar with some kind of bug in it. Soon Jackson sees that the bugs can eat humans. Then a swarm approaches and Clarke tells them to run. Murphy goes back for Emori and gets her to the group. Miller realizes that the bugs hate fire and sets off some flares. Soon they reach some sort of barrier. Shaw isn't careful and trys to run through the radiation fences and starts getting electrocuted. Clarke sees that they are radiation type shockers and she can go through them, due to her having nightblood. She goes through the barriers trying to save Shaw. When she rescues him, shaw tells Clarke to disable the towers because the group is running out of flares. She disables the towers and with that, the rest of the group gets across and she enables them again. Unforchunatly, Shaw got too much radiation. Jackson attempts to put nightblood serum into him, but Shaw tells him not to waste it. Shaw tells the group that Raven deserves happiness. WIth that, Shaw dies due to radiation exposure. Back on the mothership, Niylah wakes up Octavia, who asks where her brother is. Kane wakes up next to Abby. Kane asks where Vinson is and Abby tells him that hes been dead for 125 years. Abby shows Kane the new planet through the window on Eligius IV. Octavia interrupts them being angry about the people who dies in gorge, including Ethan, who was the first to be shot. Kane retaliates by saying that if she didn't burn the Hydrofarm , they wouldn't have lost so many people. They argue and them Kane starts puking blood. Octavia says "Your fight is over" to kane but Abby says they're not loosing him. WIth that they put Kane into Cryosleep. Jordans comments saying that putting him to cryo saved him. Abby tells Jordan to make more algae and gives the pills back to Raven. Back on the Two-Sun World, The group climbs a hill. Bellamy asks why they had radiation fences. Clarke replies saying that they must've wanted to keep smething out. (The bugs.) AT the top of the hill, they find a castle and many small houses. The scene moves away showing the entire area. The group explores the houses. Emori finds a flag with the infinity symbol on it. She thinks it's A.L.I.E., but clarke says it must be Eligius III. CLarke explores more houses and finds people in photographs standing by an American flag. Murphy finds a music player and turns it on. Clarke finds a book called "Red Sun Rising." As they read the book, it says that once the stars align, and the forest wakes, it's time to run away. Them Murphy yells. They look up and see the Gagarin flying up into the air. Miller yells that that's their ship. The group realizes that someone or something stole their transport ship. The gagarin flys away into the atmosphere. Then Emori starts attacking Murphy, saying that he will hurt them all. After the manage to seperate Murphy and Emori, CLarke realizes that the book was right, and it's in the air. The scene shows the 2 stars aligning.
