History Series / NationalTreasureEdgeOfHistory

* GreaterScopeVillain: Billie is the primary antagonist but the mysterious Salazar is the one who was originally seeking the treasure and kidnapped Jess' father. Billie also answers to a mysterious "board" who she's seen talking to over the phone and later appears in Episode 4.

* TechBro: BigBad Billie is both an antiquities dealer and a cryptocurrency billionaire. She even pays one of her spies in UsefulNotes/{{Bitcoin}}.

* WhamEpisode: Episode 9 reveals that [[spoiler:Agent Hendricks is Salazar and is the one who killed Sadusky. He also rubs Agent Ross through with a sword, seemingly killing her.]]

* BookCipher: [[spoiler: Sadusky left a book for Liam, using a cipher to share a message with him about Cras Est Nostrum.]]

* FreezeFrameBonus: The package with the "Cras Est Nostrum" book in it is addressed to Liam, implying a connection between him and Billie's organization. [[spoiler: This foreshadows the possibility that he is TheMole who leaked the Elvis recording to Billie, though it turns out he isn't.]]

* MistakenForBetrayal: When the Elvis clue is leaked to Billie, Jess suspects Liam of being a mole. [[spoiler:Turns out none of them are the mole and there was a bug planted in Oren's shoe]].

** [[spoiler:Billie mentions that she paid off one of the prison guards.]]

* FatalFlaw: Billie's schemes are often undone by her lack of attention to small details. For example:

* EvilBrit: Billie, the BigBad, is British.

* DirtyCop: [[spoiler:Billie mentions that she paid off one of the prison guards.]]

* {{Mayincatec}}: The premise of the series is that the Daughters of the Plumed Serpent, an alliance of Incan, Mayan, and Aztec women, hid their wealth while the [[EvilColonialist conquistadors]] invaded their land. The ArtisticLicense of this trope is lampshaded by Jess, who points out that the Aztecs and Mayans were rivals, and the Inca existed thousands of miles away, making the concept of them all working together highly unusual.

** Dr. Zeke Hudson implies that he used to be a surgeon but a mistake caused him to become a coroner instead.

* WhamEpisode: Episode 9 reveals that [[spoiler:Agent Hendricks is Salazar.]]

* AmicableExes: Tasha and Oren.
* ArcWords: "Cras Est Nostrum" is the PretentiousLatinMotto of the mysterious organization that Billie works for. Liam later finds a book with the words written on them in his grandfather's old mail.

* DisappearedDad: Jess' treasure hunter father disappeared when she was a baby, seemingly killed by the {{mooks}} of someone after the hidden treasure.

%%* EvilBrit: Billie.

* JustPlaneWrong: Tasha identifies Billie Pearce’s plane as a [[https://en.wikipedia.org/wiki/Bombardier_Global_7500]], which is has a T-tail and twin rear mounted engines. However, in all shots of the plane’s exterior, the model is an [[https://en.wikipedia.org/wiki/Airbus_A220]], previously known as the Bombardier CSeries, which has twin underwing mounted engines and a standard tailplane.

** WhamEpisode: Episode 9 reveals that [[spoiler:Agent Hendricks is Salazar.]]

* SinisterSurveillance: Billie watches Jess enter Sadusky's home from an unseen camera, noting that 10 minutes pass between her entrance and exit.

** Kacey is this to Billie. When they're attacked by a traitor in their organization, Kacey defeats two assassins on her own. She also [[spoiler:beats up Liam so badly he ends up in the hospital]].

** Maddox, the gray-haired bearded man, [[spoiler:to Salazar]]. He's able to pursue and capture Jess, who only escapes with Kacey's help.

* VillainousRescue: Billie saves Jess as she flees the Governor's Mansion.

* FatalFlaw: Billie's schemes are often undone by her lack of attention to small details: Jess sees through her fake FBI agents because she made a critical mistake on their badges (having them signed by the President instead of the Attorney General). Her lie about being friends with Jess's father is exposed because she didn't put his shirt buttons on the correct side in a photoshopped picture. Ethan sees through her fake recording of Jess [[spoiler: murdering Sadusky]] because fake!Jess says "further" instead of "farther" when referring to physical distance, a mistake the ''real'' Jess never would have made.[[note]]This would be correct in British English, but is incorrect in American English.[[/note]]

* FatalFlaw: Billie's schemes are often undone by her lack of attention to small details: Jess sees through her fake FBI agents because she made a critical mistake on their badges (having them signed by the President instead of the Attorney General. Her lie about being friends with Jess's father is exposed because she didn't put his shirt buttons on the correct side in a photoshopped picture. Ethan sees through her fake recording of Jess [[spoiler: murdering Sadusky]] because fake!Jess says "further" instead of "farther" when referring to physical distance, a mistake the ''real'' Jess never would have made.[[note]]This would be correct in British English, but is incorrect in American English.[[/note]]

** Ethan's evidence that the recording of [[spoiler: Jess murdering Sadusky]] is faked is that Jess uses "further" instead of "farther" to refer to physical distance, which is gramatically incorrect in American English. The ''real'' Jess speaks with perfect grammar and would never make that mistake, but Billie would because she's British and this usage is correct in British English.

* FatalFlaw: Billie's schemes are often undone by her lack of attention to small details: Jess sees through her fake FBI agents because she made a critical mistake on their badges (having them signed by the President instead of the Attorney General. Her lie about being friends with Jess's father is exposed because she didn't put his shirt buttons on the correct side in a photoshopped picture. Ethan sees through her fake recording of Jess [[spoiler: murdering Sadusky]] because fake!Jess says "further" instead of "farther" when referring to physical distance, a mistake the ''real'' Jess never would have made.[[note]]This would be correct in British English, but is incorrect in American English.[[/note}]