While Matt tracks down a raptor in Victorian London and reunites with Emily, Abby ponders whether she should listen to Matt's warnings about Phillip and Connor.
- All Myths Are True: A combination of a time-displaced raptor's grisly kills, and Emily's strange outfit she wears when she's trying to track it down give rise to the legend of Spring-Heeled Jack.
- Artistic License – History: Spring-Heeled Jack was already a well-established fixture of Victorian folklore by the 1860s, with his first sightings being thirty years prior. He's also not associated with or blamed for any killings of the time period, merely a few assaults and scares. This borders on Sadly Mythcharacterized, as they seem to conflate the folklore figure's name with an association with Jack the Ripper, despite the two figures being entirely unrelated outside of the name Jack and the era. This might be a case of the raptor attacks altering history, but the characters talk as if the creature inspired the Spring Heeled Jack sightings in the first place.
- Asshole Victim: In the end, Emily's husband Henry, after taking Matt hostage at gunpoint and threatening Emily (which was after he'd emotionally and verbally abused her, tried abducting her and planned to commit her to Bedlam solely to protect his own reputation, and then shot her when she refused to go with him) is ultimately killed by the raptor.
- Chekhov's Gun: The outfit Emily wears ends up coming in handy when Henry shoots her and it stops the bullet from reaching her skin.
- Deliberate Values Dissonance: The Victorian period is not kind to women, as Emily is nearly committed to the Bedlam House mostly because her husband is fed up of her not acting like women are "supposed" to and expressing opinions about the killings.
- Jack the Ripoff: Though the actual Spring-Heeled Jack was merely a folklore figure that was, at worst, blamed on a number of assaults on women, the show portrays them as an infamous serial killer operating in Victorian London who claimed many victims. In actuality, the killings are actually being committed by a time-displaced raptor, rather than a human serial killer, and the image of Jack is born from Emily hunting it.
- Stay in the Kitchen: Played for Drama. Emily, after returning to the deeply repressed Victorian era, struggles to conform back to the strict gender roles of the time, much to her husband's anger and insistence. While he's partly just annoyed about her unexplained disappearance for several years, he specifically calls out her "disturbing" ideas about a "woman's place" (ostensibly, being allowed to think for themselves), and because of that, he wants to have her committed for-life in the Bedlam House.
- The Dog Bites Back: Throughout the episode, Emily has a hard time refusing the orders of her abusive husband, Henry. She eventually gets fed up and leaves through the anomaly against his orders.
- The Future Is Shocking: When Henry Merchant follows Emily through the anomaly, he's horrified by the exhibits in the art museum and assumes that she's put some kind of spell on him.
- It's All About Me: Henry tries to have Emily put away in an asylum because her years-long absence and odd behavior are tarnishing his image. Somehow, he thinks having her committed would make him look better.
- Nice Job Fixing It, Villain: Abby is initially unsure if she wants to betray Connor's trust and snoop on him. To scare Abby into backing off, April threatens her job. All this does is convince Abby that something's definitely wrong with what Phillip and Connor are doing.
- Wham Shot: Doubles as a Cliffhanger. Connor and April turn on the machine they've been working on, and it creates the world's first man-made anomaly.
