History Recap / TheOrvilleS2E10BloodOfPatriots

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

* 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.
** After losing his wife and daughter and spending years in a Krill POWCamp, it's no surprise that Orrin isn't at all sanguine about the idea of a peace treaty.

* BizarreAlienBiology: The Envall 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 came to an agreement with the Union don't interact with the Union to stay away from Union worlds with significant atmospheric nitrogen. Apart from that detail, it's implied they and the Union are on good terms.

* BizarreAlienBiology: The Envall 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.

* TheCameo: John Fleck (aka [[Series/StarTrekEnterprise Silik]]) as the Krill ambassador.

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

* NoodleIncident: We never learn what specifically the Krill did to earn Leyna's enmity.

* BittersweetEnding: The treaty is signed between the Krill and the Union, but to get it done, Gordon had to lose his old friend.

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

** The Krill captain mentions Orrin holding an ultimate weapon on the shuttle he stole. Turns out the ultimate weapon isn't an object, but a person, who is an Envall.

* IOweYouMyLife: Gordon outright says this to Orrin. The latter than uses this in an attempt to persuade Gordon to join him. However, when Orrin admits that he wants Gordon to take part in a SuicideAttack, Gordon points out that it sorta undoes the whole "saving my life" thing.

*** There was also a ''Series/StarTrekEnterprise'' episode, where religious fanatics use explosives in their blood to hijack the ship and attack another religious faction.

* SunkenCostFallacy: Orrin thinks the treaty is an insult to everyone who died in the war, making their deaths "meaningless", even though it could lead to fewer deaths in the future.