- For the eponymous character, see August Heart.
- For other uses of Godspeed, see Godspeed (disambiguation).
- "There hasn't been a speedster in Central City since that... crisis piece your mom wrote about, like, decades ago. I mean, Flash, Kid Flash, Jay Garrick, that-- that weird purple speedster that just showed up one day. They're all gone."
- —Lia Nelson to Nora
After discovering that Nora is working with Thawne, Barry and Iris disagree about how to handle their daughter in the wake of this shocking news. Team Flash isn't sure they can trust Nora, so they go through her journal to find out exactly how she came to work alongside their greatest nemesis.
- The title is a reference to a speedster from the New 52 comics named Godspeed.
- This is the second episode in the fifth season of The Flash in which Grant Gustin doesn't have a lead role, with Cause and XS being the first one.
- This is the first episode of the season where Chris Klein (Orlin Dwyer) is not credited in the main cast bill, due to the death of his character in "", the previous episode.
- Danielle Panabaker makes her directional debut in this episode.
- Panabaker revealed that the most challenging thing to direct was Nora's backstory. She stated: "creating a world 30 years in the future on a TV episodic budget. It allowed everyone to be really creative and really push themselves, but it was certainly a challenge."
- Most of the episode takes place in 2049.
- Lia Nelson mentioned that there was a speedster with purple lightning who used to operate in Central City. The identity of the speedster is unknown, but it's possible that she's talking about Iris when the latter was briefly given Barry's powers in "".
- This episode includes many references to Season 1, especially "":
- At the beginning of the flash-forwards, Nora is seen running late to a crime scene she's supposed to investigate, similar to Barry in the pilot.
- Nora gets knocked into a shelf full of chemicals by Godspeed, rendering her unconscious. This is similar to what happened to Barry when he was struck by lightning in the pilot and gained powers.
- After getting struck by lightning, Nora wakes up at the hospital, while we see Lia from her point of view and the song "Poker Face" plays in the background. The same thing happened to Barry in the pilot when he woke up in S.T.A.R. Labs with the same song playing, from Cisco and Caitlin's point of view.
- The way Nora catches the power-dampening chip is similar to how Barry caught the coffee cup at Jitters in the pilot.
- The first time she used her super speed, Nora accidentally runs into a truck with the name of Gambi, getting confused about what just happened. The same thing happened to Barry in the pilot.
- When trying to teach Nora how to phase, Eobard gave her the exact same speech he gave to Barry while teaching him how to phase in "".
- At the end of the flashforwards, Eobard is seen drinking a Big Belly Burger cup, which is the same drink he used to have many times throughout Season 1.
- The way Nora responded to Gideon when they first meet is exactly the same as how Barry reacted to Gideon when he first met her in "".
- It's also the same as when Sherloque first interacts with Gideon in "".
- Nora's murder board in her investigation of Cicada's identity is similar to the board Barry kept up in his lab when trying to find out who the Man in Yellow was in order to prove that his mother hadn't been murdered by his father.
- In the Time Vault, Gideon pulled up a video filmed by Barry. Though Barry's face takes up most of the screen, a red sky looms ominously in the background. The sounds of a battle rage around him; Oliver Queen can even be heard shouting indistinctly. At one point, something off-screen flashes and causes Barry to flinch. Red skies are, of course, are significant to the Crisis of 2019 event where Iris also noted red skies as well as Barry, Oliver, and other heroes present in her article.
- The footage of Zoom that Nora watched at the Flash Museum was taken from "".
- When Nora's hurrying to a crime scene, she bumps into someone, and then apologizes, saying she's "really late for an important date", possibly referring to a quote by the White Rabbit in Alice in Wonderland.
- The way Nora began to see Thawne, who is incarcerated at Iron Heights, to ask his help to catch Godspeed, is very similar to the 1991 film The Silence of the Lambs.
- On his profile, August Heart was fired from Mercury Labs after being found guilty of administering Tachyon stimulants to 17 different comatose patients. This is a reference to his comic book Rebirth storyline, in which a Speed Force storm gave a whole bunch of people (including August) speedster abilities, to which Godspeed then kills them all to take their speed.
- Also on August Heart's profile, his birth date is August 16, 2021, a reference to his first appearance in the Flash Rebirth, which was released August 2016.
- A Flash comic is shown on Nora's desk in her office, issue #172 when Cicada tries stealing Wally West's speed using his Speed Force daggers. This marks the second time that the comic is shown, the first being in "".
- One of the nicknames that Lia gives Nora is "Lady-Flash". In the main DC comics, Lady Flash's real name was Ivana Christina Borodin Molotova, a speedster from Russia.
- Nora visits Ollins Laboratories, a reference to the Firestorm comic issue #19 (January,1984), in which the lab was testing a drug called "Nuvafed" on Fred Delmar, turning him into Goldenrod.
- In the storage room, Nora picks up a box labeled "Flash suit version 16" with Choi Industries on it, referencing Ryan Choi, the future version of the Atom.
- Iris in 2049 is in Coast City for the majority of the episode, which in the comics is the home of the Silver Age version of Hal Jordan aka Green Lantern.
- In the storage room in 2049, the Killer Frost, Vibe, and Kid Flash costumes can be seen.
- Barry warns Nora that he'll sense her in the Speed Force if she tries to come back, a reference to when Jay Garrick stopped him when he tried to travel back in time again in "".
- After Nora destroys several cop cars, one of the cops states that ,"Captain Frye is gonna be mad", a reference to the New 52 Flash comic book run, where Captain Darrel Fryre was captain of the CCPD.
- Nora tries to apprehend two robbers Bug and Byte, who in the comics, are a brother-sister criminal duo and enemies of Firestorm. They appeared in The Fury of Firestorm #23 and #24.
- It's noted that no speedster other than Godspeed has white lightning. However, Savitar's lightning was white whenever he wore his suit.
- However, when Savitar ran without his armor, his lightning was yellow, meaning that Savitar's lightning wasn't actually white; it just looked that way because of the way it reflected off of his armor.
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