The events of this take place at the same time during the events of A New World, Part 1: Reunions (2023) until Barry appeared just in time for the birth of Nora West-Allen.
Mark says it's been seven months since he left the team.
The title sequence subtitles this episode as "The Blues," but the official title to the episode does not contain the subtitle.
While not having as many as previous episodes, this episode has some callbacks and references to previous seasons, mainly Season 1:
-Barry realizing that Nora West-Allen is about to be born and asking Iris "right now?" is very similar to when he and Iris were discussing having a child in We Are the Flash (2018) and he asked "right now?" and Iris replied "not right now but some day" which took place in this episode.
- Eddie Thawne's headstone says he died on May 19, 2015. That was the date that Fast Enough (2015) aired, which depicted the character's death.
- Flashbacks of Eddie Thawne from various episodes in Season 1 include: a) Eddie committing suicide in an attempt to erase his descendant, Eobard Thawne in Fast Enough (2015), b) Barry revealing his identity as The Flash to Eddie in Tricksters (2015), c) Eddie proposing to Iris on a bridge until Eobard interrupted the proposal and kidnapped him in The Trap (2015), d) Eddie giving Iris a key to his apartment on Christmas in The Man in the Yellow Suit (2014).