History Recap / TheFlash2014S9E4TheMaskOfTheRedDeathPart1

** Red Death is full of classic Batman references, such as calling criminals a "superstitious, cowardly lot."

** When Red Death mocks Barry's theory that she's the avatar of the Negative Speed Force, she says she's not "kind of herald for the dark cosmos". Comicbook Red Death was a herald for the Dark Multiverse.

** While Red Death's claims of fighting a secretly evil Barry Allen are possible, the audience only has her word for it.

* NobodyGetsLeftBehind: Subverted. Barry wanted to get Mark, but with the Red Death recharging, the Rogues forcibly drag him and teleport him back. He's not happy about that, especially about the fact that they don't seem bothered by abandoning Mark.

* AccidentalMisnaming: Towards the end of the episode Barry refers to Khione as "Caitlin". As no one reacts to this or comments on this, this may in fact be a {{blooper}} that wasn't caught.[[invoked]]

* MythologyGag: Red Death is full of classic Batman references, such as calling criminals a "superstitious, cowardly lot."

* InternalReveal: Barry, Iris and the rest of the team learn who Red Death really is.

* TheMultiverse: [[AmbiguousSituation Maybe]]. Following the ''[[Series/CrisisOnInfiniteEarths2019 Crisis]]'' it's made clear that there ''is'' actually a new multiverse, but only the audience is aware of this--not the heroes, who believe that they are alone on Earth-Prime. Red Death claims she's from an "alternate timeline" (which could bring to mind something like [[TheFlash/SeasonThree Savitar]]), but everything about it seems to suggest a parallel Earth similar to what the multiverse was pre-Crisis.
* MyGreatestSecondChance: The reason Joe wants to move out of Central City is because he wants to give Jenna the normal childhood that Barry, Iris and Wally never had.
* MythologyGag: Red Death is full of classic Batman references. Such as calling criminals a "superstitious, cowardly lot."

* PetTheDog: Mark keeps Mercer from unmasking Barry, by informing him that the cowl is rigged to shock someone who tries to remove it.
* PintSizedPowerhouse: It's made clear in this episode that Red Death's height is comparable to Creator/JaviciaLeslie's (even if there may be a stuntperson in the suit for certain scenes), which is 5ft3, ''far'' shorter than past iterations of the "evil, menacing speedster" trope frequently seen throughout the series. Of course, she is still portrayed as no less dangerous or menacing.

* AmbiguousSituation: While Red Death's claims of fighting a secretly evil Barry Allen are possible, the audience only has her word for it.

* SpotTheImposter: Iris quickly realizes that Red Death is not the Ryan she knows.

* TookALevelInBadass: Roy Bivolo's powers have evolved to the scale of Carrie Bates', where he can make people feel other emotions besides anger. He used it to make Barry feel fear.

* VillainousBreakdown: With the cosmic treadmill destroyed and her plans to return home (literally) up in flames, the Red Death decides to her revenge out of the prime Flash as her way of "taking the war to him this time".

* KnightTemplar: Red Death seems to genuinely believe that her Flash is the bad guy, while improsoning people who haven't done anything yet is justified.

* BadassBoast: Red Death lets out one.

* WhatTheHellHero: Both Barry and Khione call out the Rogues for not saving Mark.

* VillainousBreakdown: With the cosmic treadmill destroyed and her plans to return home (literally) up in flames, the Red Death decides to her revenge out of the prime Flash as her way of "taking the war to him this time".

* MythologyGag: Red Death is full of classic Batman references. Such as calling criminals a "superstitious, cowardly lot".

* VillainousBreakdown: With the cosmic treadmill destroyed and her plans to return home up in flames, the Red Death decides to her revenge out of the prime Flash as her way of "taking the war to him this time".

* AccidentalMisnaming: Towards the end of the episode Barry refers to Khione as "Caitlin". As no one reacts to this or comments on this, this may in fact be a {{blooper}} that wasn't caught.

* PetTheDog: Mark keeps Mercer from unmasking Barry, by informing that the cowl is rigged to shock someone who tries to remove it.

* PintSizedPowerhouse: It's made clear in this episode that Red Death's height is comparable to that of Creator/JaviciaLeslie's (even if there may be a stuntperson in the suit for certain scenes), which is that of 5ft3, ''far'' shorter than past iterations of the "evil, menacing speedster" trope frequently seen throughout the series. Of course, she is still portrayed as no less dangerous or menacing.

* TheReveal: The Red Death is not the new Negative Speed Force Avatar that will replace Thawne, but actually an alternate timeline version of Ryan Wilder who was adopted by the Wayne family and became a vigilante after their murder. But she later became so obsessed with crime-fighting that she began copying her enemies weapons and powers, including the Flash's. She used artificial speed to became a ruthless vigilante that killed people who hadn't committed crimes yet. The Flash led Rogues of his own to stop her, ending with her killing Iris when she tried to get her to stand down, then hid in the Speed Force from him only to wind up in the main timeline. Now she seeks to build a cosmic treadmill to get back to her timeline, and take the prime Iris with her to use as leverage against her Flash.

* MythologyGag: Red Death is full of classic Batman references. Such as calling criminals a "superstitious, cowardly lot"

* RedemptionEqualsDeath: Mark turns against Red Death and frees Barry from the treadmill, but dies holding off her Rogues while he escapes.