The Knights must find a way to escape and save Gotham City from the Court of Owls.
Tropes
- Ambiguous Situation: Given that Henri Ducard is the leader of a league of international assassins here, as in Batman Begins, it's unclear whether he's an alter ego of Ra's al Ghul as he was in that film or a separate character as in the comics (where he's a corrupt detective who taught Batman some skills in Paris, not a king of assassins). Given that Turner's parents were said to be assassins and the fact that the language Turner's kidnappers use sounds a lot like Arabic, the implication is pretty strongly the former.
- Broken Pedestal: Turner has this for his birth parents after learning they were assassins who murdered who knows how many people, describing them to the other Knights as "monsters". Bruce, and the Gotham City police detective assigned to the case (who is now the Chief), had previously kept this a secret from him in order to spare him this trope.
- Cassandra Truth: Naturally, the cops are incredulous at hearing the Gotham Knights' stories that the Court of Owls has an immortality-inducing material from outer space and immortal assassins due to this. Until said assassins come for them, killing many cops while doing so.
- Continuity Nod: After Harper begins telling Duela how to disarm the mother bomb and Stephanie tells her to hold off, Harper says, "We're not doing this again," referencing the last time she and Stephanie disagreed over how to disarm a detonator. But then it turns out Steph has realized the mother bomb is a kind of Dead Man's Switch and disarming it will trigger the other seven bombs.
- Cop Killer: The Talons slaughter at least half a dozen GCPD officers while going to kill the Gotham Knights, who are now in their custody.
- Cut Short: The second non-Arrowverse CW-aired DC series to end this way, behind Naomi.
- Deader than Dead: While the initial attempt to kill Rebecca with Phlebotinum Overload is unsuccessful, she and her Talons are definitely dead by the episode's end when they are riddled with powerful bullets by Henri Ducard's goons and then left to die in the exploding Wayne Tower.
- Everyone Can See It: Downplayed. Stephanie and Harper weren't in denial about their relationship, but didn't realize it was obvious to everyone until Cullen and Turner inform them in the elevator.
- Fauxreigner: The passports the Chief of Police shows Turner for Mr. and Mrs. "Hayes" have them as Swiss nationals named Emma Brunner and Gabriel Graf, indicating that they were only pretending to be American and these are either their real names or part of a series of aliases for different countries.
- Foregone Conclusion: By nature of his existence in this series, coupled with his alternate personality, pretty much everyone knew Harvey was getting the acid on his face.
- Grand Finale: Due to being Cut Short, Gotham Knights ends here at 13 episodes.
- Last Episode, New Character: Henri Ducard makes his appearance in this episode, which, due to the cancellation of Gotham Knights, is the final episode of the entire series.
- "Not So Different" Remark: Turner tells the others that if they write off the possibility of Duela being a good person because of her background, then they'd have to write him off, too, since his birth parents were evildoers. This seems to hit home for Brody in particular, given who his own parents are.
- Papa Wolf: Even Harvey's bad side turns out to be protective of Duela, and after becoming Two-Face tracks down and shoots Jane Doe for betraying her.
- Phlebotinum Overload: How Rebecca March is initially defeated—Brody administers a hefty dose of Electrum into her already Electrum-riddled body, knocking her out. However, it turns out she's Not Quite Dead from this.
- Rebuilt Pedestal: Learning that Batman only killed his biological parents in self-defense helps Turner resolve the conflicted feelings and resentment he's been carrying for Bruce lately. He boasts to Rebecca that Batman's legacy will never die as long as Gotham exists, and tries to save the rest of Bruce's journals from Wayne Tower.
- The Reveal: Turner's biological parents were international assassins employed by Henri Ducard to kill Batman, who was forced to kill them in self-defense.
- Sadistic Choice: Rebecca coerces Harvey to bring out his evil alternate personality or she'll murder his daughter, and he reluctantly does it because of this.
- Taken During the Ending: The season finale ends with Turner going back into Wayne Tower to retrieve Bruce Wayne's journals, and getting ambushed and kidnapped by assassins on the way out.
- Unpleasant Parent Reveal: Turner learns from the Chief of Police that his birth parents were prolific assassins, and he now denounces them as "monsters".
- Villainous Rescue: Presuming Henri Ducard is indeed a villain, it's ultimately his own heavily armed mooks who are the ones that deal the finishing gunshot blows to Rebecca and her Talons (and then leaving them to die in the exploding Wayne Tower) just before they can kill Turner, and then abducting Turner himself to train him at his compound.
