History Recap / Supergirl2015S5E18TheMissingLink

* HatePlague: After one prisoner is affected by Non Nocere failing and attacking another, the aggression spreads rapidly.
* HeelFaceTurn: After her HeelRealization, Lena chooses not to become like Lex and swallows her pride and goes to Kara to offer her help in stopping Lex and Leviathan.

* HeelRealization: Lena finally acknowledges her actions were wrong and knows she has become the villain she spent her life trying to avoid.

* BlatantLies: Kara once again makes up a very poor excuse to get away from William, this time that her sisters cat ran away. And when William tries to help her, as he is good with cats, she tries to sell it to him that this cat hates tall people with accents

* EasilyForgiven: Lena, after her HeelRealization, feels that she doesn't deserve Kara's forgiveness, but wants to help take down Lex for good. Kara, who's been listening while still upset, just pulls up a chair and wishes to learn what Lena knows. However, this might be subverted. Kara didn't forgive Lena but obviously needs to hear her out in order to stop Lex. It remains to be seen whether Kara will forgive Lena let alone the pair become friends again.

* RealityEnsues: Since Eve has no criminal record post-Crisis and they have no actual evidence to back up their claims, Andrea is quick to dismiss William and Kelly's assertion that she's dangerous.

* BlatantLies: Kara once again makes up a very poor excuse to get away from William, this time that her sisters cat ran away. And when William tries to help her, as he is good with cats, she tries to sell it to him that this cat hates people who look like him.

* EasilyForgiven: Lena, after her HeelRealization, feels that she doesn't deserve Kara's forgiveness, but wants to help take down Lex for good. Kara, who's been listening while still upset, just pulls up a chair and wishes to learn what Lena knows.
** This might be subverted. Kara didnt forgive Lena but obviously needs to hear her out in order to stop Lex. It remains to be seen whether Kara will forgive Lena let alone the pair become friends again.
* EntertaininglyWrong: Kara is extremely angry at Lena's behaviour from last episode and suspects her to be working with Leviathan as well.

* IgnoredExpert: Andrea completely blows off Kelly's concern about launching a huge VR event after Obsidian Platinum just hade a major glitch.

** Brainy calls out Lex for his manipulative tendiences again, with the latter naturally not caring in the slightest.

** Non Nocere itself. It fails here and Lex tells Lena that he knew it would never work. However, on Earth-38, the process worked and Lena would have been successful if Kara and Malefic hadn't stopped it.

* TheAtoner: Lena wishes to become this at the end.
* BigDamnKiss: M'gann and J'onn share one at the end of the episode.
* BlatantLies: Kara once again makes up a very poor excuse to get away from William, this time that her sisters cat ran away. And when William tries to help her, as he is good with cats, she tries to sell it to him that this cat hates people who look like him.

* ContinuitySnarl: Earlier episodes established that, in the post-Crisis reality, Leviathan hasn't made any overt moves, with Nia specifically mentioning early in this episode that Rama Khan hasn't been seen in centuries. Yet he and Gamemnae both reference his earlier fights with the supers, meaning they either still happened in the current reality or the pair somehow remember the previous reality.
** Non Nocere itself. It fails here and Alex tells Lena that he knew it would never work. However, on Earth-38, the process worked and Lena would have been successful if Kara and Malefic hadn't stopped it.

** Non Nocere itself. It fails here and Alex tells Lena that he knew it would never work. However, on Earth38, the process worked and Lena would have been successful if Kara and Malefic hadnt stopped it.

** Non Nonchere itself. It fails here and Alex tells Lena that he knew it would never work. However, on Earth38, the process worked and Lena would have been successful if Kara and Malefic hadnt stopped it.

* EasilyForgiven: Lena, after her HeelRealization, fells that she doesn't deserve Kara's forgiveness, but wants to help take down Lex for good. Kara, who's been listening while still upset, just pulls up a chair and wishes to learn what Lena knows.

* MyGodWhatHaveIDone: Lena is absolutely crushed by how she was used for the sake of Lex's plans.

* EntertaininglyWrong: Kara is extremely angry at Lena's behaviour from last episode and suspects her working together with Leviathan as well.

* TheBusCameBack: Rama Khan returns.

* PlayAlongPrisoner: Rama Khan allowed himself to be captured in order to be brought to the DEO so that he could raid it for Kryptonite and level the place.

* ContinuitySnarl: Earlier episodes had established that in the post-Crisis reality, Leviathan hasn't made any overt moves, with Nia specifically mentioning early in this episode that Rama Khan hasn't been seen in centuries. Yet he and Gamemnae both reference his earlier fights with the supers, meaning they still happened in the current reality.

* EvilCannotComprehendGood: Lex believed that Lena finding out that Non Nocere ''can't'' work would convince that world domination was the only reasonable course of action. When she rightfully calls him on it, he blows up at her.

* DarkestHour: The DEO building has been destroyed, Nia's relationship with Brainy is damaged further, William is captured, and Leviathan is closer to its goals.

-->'''Lena''': (''mirthless laughter'') Honest...you never change. This was always...''all about you''!