History Recap / StarTrekDiscoveryS3E13ThatHopeIsYouPartTwo

* MythologyGag: Burnham doesn't believe in [[Film/StarTrekTheWrathOfKhan the no-win scenario]].

* ColdEquation: The lack of life support does not instantly kill the bridge crew-- nor should it, since whatever oxygen was already in the atmosphere is ''still there'' (though it is being slowly vented out). This is not only more realistic than previous ''Trek'' depictions of the situation, it is effectively PlayedForDrama because Osyraa is doing it on purpose to prolong their suffering.

* WhatMeasureIsANonHuman: ZigzaggedTrope. During the opening action scene, the DOT-23 repair drones are blown away by the dozen with no one even seeming to notice. Later, when a specific drone is damaged helping Owosekun, she and Reno go out of their way to repair it. No explanation is given as to why this particular drone is special (beyond [[IOweYouMyLife understandable]] human gratitude)-- nor, for that matter, whether the Sphere AI is inhabiting specific drones (implied by the previous episode) or all of them (implied by this one) or even just conducting BrainUploading if a current host is destroyed.

As the Emerald Chain tightens its grip and the mystery of the Burn is finally solved, Burnham and the crew have one last chance to save themselves-- and the Federation.
----
!!Tropes in this episode:

* SignificantWardrobeShift: ''Discovery'' switches to current Federation uniforms at the end of the episode, since the Burn has been solved and Starfleet is once again becoming what it used to be. As opposed to being blue with metallic piping to indicate division, these new uniforms are grey with a wide colored division panel down the side of the jacket. Adira is also wearing one of these uniforms instead of the UEDF uniform, having officially joined Starfleet.

As the Emerald Chain tightens its grip and the mystery of the Burn is finally solved, Burnham and the crew have one last chance to save themselves -- and the Federation.

* BerserkButton: Zareh taunts Book by asking who would splatter more: him or "his fat cat". This is enough to get Book to kick Zareh out of the turbolift and to his death, afterwards growling "[[BondOneLiner She's...a]] ''[[BondOneLiner queen]]''!"

* CallBack: Vance reminds Burnham of [[Recap/StarTrekDiscoveryS3E06Scavengers the time he reamed her for going rogue]].

** Owo mentions being able to hold her breath for up to ten minutes as a result of free diving training, which means she's the only one capable of delivering the improvised bomb when the oxygen runs out.

* ColdEquation: The lack of life support does not instantly kill the bridge crew -- nor should it, since whatever oxygen was already in the atmosphere is ''still there'' (though it is being slowly vented out). This is not only more realistic than previous ''Trek'' depictions of the situation, it is effectively PlayedForDrama because Osyraa is doing it on purpose to prolong their suffering.

* MegaMawManeuver: Osyraa has the ''Viridian'' pull ''Discovery'' into its shuttlebay when the nacelle is disabled. To escape, Burnham ejects and then overloads ''Discovery's'' warp core while using the spore drive to jump out.

* MyGodWhatHaveIDone: Su'Kal is horrified that he was the source of the Burn, but is assured by Saru that he can't blame himself for something he had no knowledge of.

* ThisIsSomethingHesGotToDoHimself: Saru tells Su'Kal that he has to complete his final test, but will be there to support him.

* WhatMeasureIsANonHuman: ZigzaggedTrope. During the opening action scene, the DOT-23 repair drones are blown away by the dozen with no one even seeming to notice. Later, when a specific drone is damaged helping Owosekun, she and Reno go out of their way to repair it. No explanation is given as to why this particular drone is special (beyond [[IOweYouMyLife understandable]] human gratitude) -- nor, for that matter, whether the Sphere AI is inhabiting specific drones (implied by the previous episode) or all of them (implied by this one) or even just conducting BrainUploading if a current host is destroyed.

* RealityEnsues: The lack of life support does not instantly kill the bridge crew -- nor should it, since whatever oxygen was already in the atmosphere is ''still there'' (though it is being slowly vented out). This is not only more realistic than previous ''Trek'' depictions of the situation, it is effectively PlayedForDrama because Osyraa is doing it on purpose to prolong their suffering.

----

* BerserkButton: Zareh taunts Book by asking who would splatter more: him or "his fat cat". This is enough to get Book to kick Zareh out of the turbolift and to his death, afterwards growling "She's...a ''queen''!"

* WeUsedToBeFriends: Zig-zagged. After Stamets is reunified with Culber and Adira, he's happy to see them, but is clearly still angry at Burnham for spacing him. The final scene does have him smiling and clapping along with everyone else on the bridge, as ''Captain'' Burnham enters, presumably having gotten over in in however long it took to get to this point.

* BerserkButton: Zareh taunts Book by asking who would splatter more: him or "his fat cat". This is enough to get Book to kick Zareh out of the turbolift and to his death, Book growling "She... is a ''queen''!"

* RealityEnsues: The lack of life support does not instantly kill the bridge crew -- nor should it, since whatever oxygen was already in the atmosphere is ''still there''. This is not only more realistic than previous ''Trek'' depictions of the situation, it is effectively PlayedForDrama because Osyraa is doing it on purpose to prolong their suffering.

-->Creator/GeneRoddenberry

** Aditya Sahil returns from [[Recap/StarTrekDiscoveryS3E01ThatHopeIsYouPartOne all the way in the first episode of the season]], now an official member of Starfleet.

** Owo goes alone to sabotage the nacelle when the rest of the bridge crew can't follow. She is nearly caught in the blast, but the Sphere data drags her to safety in a DOT-23.

* WeUsedToBeFriends: Zig-zagged. After Stamets is reunified with Culber and Adira, he's happy to see them, but is clearly still angry at Burnham for spacing him. The final scene does have him smiling and clapping along with everyone else on the bridge, as ''Captain'' Burnham enters.

* YouAreInCommandNow: Burnham is now Captain of ''Discovery''.

* SignificantWardrobeShift: ''Discovery'' switches to current Federation uniforms at the end of the episode, since the Burn has been solved and Starfleet is once again becoming what it used to be. As opposed to being blue with metallic piping to indicate division, these new uniforms are grey with a wide colored division panel down the side of the jacket.

* TruthSerum: This is used on Book in a attempt to force the location of the dilithium planet out of him. It fails because Book has built up a tolerance to it. Osyraa instead threatens to torture him to death while Burnham watches so she'll give up the information.