Clarke embraces the traditions of Sanctum and tries to make amends for her past actions.
- Better to Die than Be Killed: Cillian slits his own throat rather than be captured by the Primes.
- Body Snatcher: It is revealed in this episode that this is the Primes' MO: They upload the consciousness of the original families into the body of nightbloods who officially do so "willingly" but have been brainwashed their entire lives into believing the Primes are gods. There is nothing willing, however, about how the Lightbournes use Clarke for their daughter, Josephine.
- Coitus Ensues: Clarke sleeps with the doctor, Cillian.
- Cool Bike: Dioyza acquires one from Jade.
- Ryker has one as well, impressing Raven.
- Cooperation Gambit: Diyoza accepts Jade's offer to let her child live in Sanctum, even if she cannot, in exchange for rescuing Rose. Then, after Rose is killed, Diyoza changes the terms and agrees to kill the "Old Man" so her daughter can live. Jade agrees.
- Evil Mentor: Sheidheda is attempting this on Madi.
- Human Sacrifice: Essentially what the Lightbournes do to Clarke.
- Mama Bear: At the beginning of the episode, Diyoza is talking to her unborn daughter and promising to teach her how to survive. However, the second an offer is made for her to daughter to live inside Sanctum, Diyoza jumps at the chance.
- Not So Stoic: Echo breaks down telling Bellamy what happened to her family: her house was set on fire and her parents killed when she was eight. While they were hiding, her mother told her not to cry or they'd be heard, which has been Echo's mantra her entire life. She was then taken in by Queen Nia and trained as a spy.
- Older Than They Look: Priya, in Delilah's body, is Ryker's mother.
- Rejected Apology: Raven refuses to accept Clarke's apology, again.
- The Stoic: Bellamy calls out Echo on being too stoic and not reacting to Monty and Harper's deathes, which, to them, happened only days before. See Not So Stoic above.
- Their First Time: Jordan is shown in bed with Delilah, after having never had any exposure to anyone outside his parents his entire life before going into cryosleep.
- Title Drop: Twice - Jordan explains to Delilah that he used to look at his current companions and that they were just faces behind the glass, and regrets that he became one to his parents. Then, just before her naming ceremony, Delilah begs Jordan not to let her be a face behind the glass.
- Would Hurt a Child: Rose is killed by the Children of Gabriel.