This episode takes place before the similarly titled season one Legends of Tomorrow episode Star City 2046 (2016).
The toddler Mia, played by Jade Bamford, is the daughter of the director of this episode, James Bamford.
At 5:18 Mia asks "What the frak...?" . The word "frak" was first heard in the original "Battlestar Galactica" TV series as a censor-acceptable alternative to the expletive "f".