History Recap / TheOrvilleS2E10BloodOfPatriots

* AbandonShip: Gordon jumps out of the shuttle in a space suit when Orin activates the bomb.
* BeingTorturedMakesYouEvil: Orin spending twenty years in a Krill prison after they killed his family has driven him to get revenge no matter the cost.
* BetterToDieThanBeKilled: Orin would rather blow himself up than accept Gordon's offer to save his life, because the Union likely would have approved his extradition once they learned he really was responsible for blowing up several Krill destroyers, which would have been a death sentence far more terrible than going out on his own terms.

* BizarreAlienBiology: The Invol have blood which reacts explosively with nitrogen, an element that is pretty common in the atmosphere of any species that breathe. Their atmosphere is able to negate the effect, but they don't interact with the Union much because that isn't true of everywhere else.
* DeadPersonImpersonation: Orin's daughter Layna died in the Krill attack 20 years ago along with his wife. The young woman he's traveling with is really a HumanAlien whose blood can be weaponized.

** The Krill captain mentions Orin holding an ultimate weapon on the shuttle he stole. Turns out the ultimate weapon isn't an object, but a person, who is an Invol.
** Layna does not want to be scanned when Dr. Finn approaches her after Orin crashes the shuttle, and for good reason too.
** The movie that Gordon and Layna are watching near the middle of the show, ''Film/PlanetOfTheApes1968'', foreshadows Layna as the weapon, as Charleton Heston's character in the movie exclaims the famous line "YOU BLEW IT UP!".
* GunStruggle: When Orin reveals his true plan to Gordon, a fight ensues over Gordon's blaster, which Gordon wins.
* HiddenInPlainSight: Orin's "daughter" Layna is in fact his weapon, since in reality she's an Invol, who have explosive blood. No one thought to investigate her until Talla noticed the needle marks on her arm.
* INeedAFreakingDrink: Gordon downs a shot of scotch before admitting to Talla that Orin wants to steal a shuttle.
* IOweYouMyLife: Gordon outright says this to Orin. The latter than uses this in an attempt to persuade Gordon to join him. However, when Orin admits that he wants Gordon to take part in a SuicideAttack, Gordon points out that it sorta undoes the whole "saving my life" thing.
* IrrevocableOrder: Orin's bomb. Once activated, the countdown can't be stopped.
* MakeItLookLikeAStruggle: Gordon sells his supposed attempt to help Orin by stunning Talla.

* MuggingTheMonster: Played with. Layna holds a knife to Talla's throat. Talla responds by asking if she's ever met a Xelayan before, and then [[SuperStrength tosses her into the nearest wall one-handed.]] Talla looks ''completely'' unimpressed... before Claire arrives, spots the Invol blood, and points out that this woman is incredibly dangerous in her own right.
* OhCrap: Finn, when she sees Layna's yellow blood and realizes that they have seconds to prevent an explosion that could cripple or destroy the ''Orville''.

** After losing his wife and daughter and spending years in a Krill POWCamp, it's no surprise that Orin isn't at all sanguine about the idea of a peace treaty.
* {{Realpolitik}}: The Union and the Krill don't have an extradition treaty, but the admiralty considers handing Orin over to the Krill should he turn out to be guilty of destroying their ships if it will help the peace process.
* RedemptionRejection: Gordon tries to save Orin's life when his plot is foiled, but Orin is too far gone and opts to blow himself up rather than admit defeat.

** Orin himself also has similarities to Tahna Los from the ''Series/StarTrekDeepSpaceNine'' episode "Past Prologue" -- a prisoner who escapes on a small ship that our heroes rescue and who turns out to be friends with a main character, whom he then tries to manipulate into blowing something up only for said friend to stop him.
** The concept of Layna's explosive blood also harkens back to the ''Series/StarTrekVoyager'' episode "Basics, Part 1", where a Kazon, a recurring gang-like enemy, activates an explosive compound in his blood in order to disable the ship to allow its capture.
* SuddenlyVoiced: Layna pretends to be mute, but when she realizes her cover is about to be blown, her personality changes completely and she threatens Talla with a knife.
* SuicideAttack: Orin tries to do this with Gordon's help, since without the Krill shuttle he doesn't have a delivery system for his makeshift bombs.
* ThatManIsDead: In the end, Ed tells Gordon he's sorry about Orin's death. Gordon simply replies that the Orin he knew died a long time ago in a Krill prison.

* WhamShot: Layna gets a nosebleed after being thrown into the wall, and the blood is yellow.
* WhatHappenedToTheMouse: Last we see and hear of Layna, she's been sealed in her quarters by a forcefield. The episode never explains what they did with her.
* TheWorfEffect: [[AvertedTrope Averted]] twice by Talla. When Gordon shoots her it looks like a straight example, but it was AllAccordingToPlan. Later, when Layna has a knife at her throat, Talla calmly smashes her against a wall. She even throws in some [[DeadpanSnarker snark]].

** The movie that Gordon and Layna are watching near the middle of the show, [[Film/PlanetOfTheApes]] foreshadows Layna as the weapon, as Charleton Heston's character in the movie exclaims the famous line "YOU BLEW IT UP!".

* {{Foreshadowing}}: The Krill captain mentions Orin holding an ultimate weapon on the shuttle he stole. Turns out the ultimate weapon isn't an object, but a person, who is an Invol.

** The concept of Layna's explosive blood also harkens back to the Star Trek: Voyager episode "Basics, Part 1", where a Kazon, a recurring gang-like enemy, activates an explosive compound in his blood in order to disable the ship to allow capture.

* MandatoryLine: Interestingly, coming off [[Recap/TheOrvilleS2E8E9Identity "Identity,"]] Issac only gets a couple of lines here.

* RealityEnsues: Just because they face a common enemy doesn't mean the Krill are ready to accept the Union as equals. They still have their near-fanatic sense of superiority and know full well how the Union needs them.

* DeadPersonImpersonation: Orin's daughter Trisha died in the Krill attack 20 years ago along with his wife. The young woman he's traveling with is really a HumanAlien whose blood can be weaponized.

* HiddenInPlainSight: Orin's "daughter" Trisha is in fact his weapon, since in reality she's an Invol, who have explosive blood. No one thought to investigate her until Talla noticed the needle marks on her arm.

* MuggingTheMonster: Played with. Trisha holds a knife to Talla's throat. Talla responds by asking if she's ever met a Xelayan before, and then [[SuperStrength tosses her into the nearest wall one-handed.]] Talla looks ''completely'' unimpressed... before Claire arrives, spots the Invol blood, and points out that this woman is incredibly dangerous in her own right.
* OhCrap: Finn, when she sees Trisha's yellow blood and realizes that they have seconds to prevent an explosion that could cripple or destroy the ''Orville''.

* SuddenlyVoiced: Trisha pretends to be mute, but when she realizes her cover is about to be blown, her personality changes completely and she threatens Talla with a knife.

* WhatHappenedToTheMouse: Last we see and hear of Trisha, she's been sealed in her quarters by a forcefield. The episode never explains what they did with her.

* WhamShot: Trisha gets a nosebleed after being thrown into the wall, and the blood is yellow.

!!Tropes

* BetterToDieThanBeKilled: Orin would rather blow himself up than accept Gordon's offer to save his life. However, even if Orin survived the ordeal, he would in all likelihood have been extradited to the Krill and executed later anyway.

* BizarreAlienBiology: The Invol have blood which reacts explosively with nitrogen, which understandably is pretty common among species that breathe. Their atmosphere is able to negate the effect, but they don't interact with the Union much because that isn't true of everywhere else.
* DeadPersonImpersonation: Orin's daughter died in the Krill attack 20 years ago along with his wife. The young woman he's traveling with is really a HumanAlien whose blood can be weaponized.

* GunStruggle: When Orin reveals his true plan to Gordon, a fight ensues over a phaser, which Gordon wins.
* HiddenInPlainSight: Orin's "daughter" is in fact his weapon, thanks to the Invol's explosive blood, and barely anyone thought to investigate her until Talla noticed the needle marks on her arm.

* MuggingTheMonster: Played with. The Invol holds a knife to Talla's throat. Talla responds by asking if she's ever met a Xelayan before, and then [[SuperStrength tossing her into the nearest wall one-handed.]] Talla looks ''completely'' unimpressed... before Claire arrives, spots the Invol blood, and points out that this woman is incredibly dangerous in her own right.

* SuddenlyVoiced: Orin's "daughter," when she realizes her cover is about to be blown, threatens Talla with a knife.

* WhatHappenedToTheMouse: The Invol, when her true nature is uncovered, gets locked in the room and sealed off with a forcefield. That's the last we hear of her, so... is she still locked in there?

* IOweYouMyLife: Gordon outright says this to Orin.

* ShoutOut: The basic plot of the episode is like "[[Recap/StarTrekTheNextGenerationS4E12TheWounded The Wounded]]" from ''Series/StarTrekTheNextGeneration'', in which Miles O'Brien is reunited with his former captain, who has gone rogue against the Cardassians.

* MuggingTheMonster: The Invol holds a knife to Talla's throat. Talla responds by tossing her into the nearest wall one-handed.

* RedemptionRejection: Gordon tries to save Orin's life when his plot is foiled, but Orin is too far gone and opts to blow himself up rather than admit defeat. However, even if Orin survived the ordeal, he would in all likelihood have been extradited to the Krill and executed later anyway, so Orin really figured it's BetterToDieThanBeKilled.

* RedemptionRejection: Gordon tries to save Orin's life when his plot is foiled, but Orin is too far gone and opts to blow himself up rather than admit defeat.

!!Tropes

* BizarreAlienBiology: Hard to get more bizarre than ''explosive blood''.

* WarIsHell: It's mentioned more than once that war is hell and that peace isn't an easy thing for those who have been victims of the war between the humans and the Krill.

As Ed and the Union try negotiating a last peace with the Krill due to the Kaylon threat, an old academy friends of Gordon's turns up alive. Putting the already tense peace in danger of breaking.

* RealityEnsues: Just because they face a common enemy doesn't mean the Krill are ready to accept the Union as equals. They still have their near-fanatic sense of superiority and know full well how the Union needs them.

Ed must try to create a peace with the Krill in order to face the Kaylon threat.