Recap: The X Files S 01 E 24 The Erlenmeyer Flask

A car chase in Maryland ends with the fugitive overpowering several officers, bleeding green blood, and disappearing into the water. When Deep Throat points Mulder to the case, he and Scully find themselves investigating. Scully doesn't trust Deep Throat, but both she and Mulder find themselves led to a gene therapy experiment of possibly extraterrestrial origin, as well as government spooks looking to cover it up at any cost.

Tropes:

  • The Adjectival Man: One of the men in black is known only as Crew-cut Man.
  • Alien Blood: The participants in the gene therapy experiment developed green blood that emits vapors that are toxic to non-hybrids.
  • Anyone Can Die: Mulder's Mysterious Informant Deep Throat is killed at the end of the episode.
  • Artistic License Biology: Scully describes chloroplasts as plant cells; a chloroplast is in fact an organelle, a specialised structure within the cell. To use an analogy, she called your liver a person.
  • Book Ends: The first and last episodes of the season end with the Cigarette-Smoking Man placing an alien item into a secure storage facility in the Pentagon.
  • Captain Obvious: A microbiology expert explains the rudiments of genetics material taught in any high school's freshman biology class to Agent Scully, a fully qualified doctor.
  • Coincidental Broadcast: Mulder watches the news informing on the case he's about to investigate. Justified because Deep Throat, his secret informant, called him to tell him to watch it.
  • The Conspiracy: As exposited by Deep Throat; this time we learn US Intelligence has "black groups", one of which has been wiping out the evidence (and people) of the Purity Control project.
  • Destination Defenestration: One of the murder victims was chucked out of his lab window.
  • Half-Human Hybrid: Terminal patients were given gene therapy with alien DNA, which on top of curing them also gave them super strength, toxic green blood, and the ability to breathe water. Handy.
  • It Was Here, I Swear: When Mulder returns to the storage unit full of incubating hybrids, it's been entirely cleared out.
  • Killed Off for Real: Some people on this show were only seemingly dead or even managed to get resurrected. Not Deep Throat. He was offed for good, never to return but in hallucinations, flashbacks, or alternative realities.
  • Myth Arc: It was a mythology episode, as is becoming for a Season Finale.
  • No Escape but Down: A fugitive flings himself off the jetty and into the sea, and disappears.
  • Not of This Earth:
    "A fifth and sixth DNA nucleotide. A new base pair. It exists nowhere in nature. It would have to be, by definition... extraterrestrial."
  • People Jars: In Zeus Storage there are five glass tanks similar to aquariums with naked men, alive and breathing underwater. There are first successful alien-human hybrids.
  • Person as Verb: Person from popular culture as adjective. Mulder gets angry with Deep Throat.
    Mulder: But maybe this time, we can just cut out the Obi-Wan Kenobi crap and you can save me the trouble.
  • Super Not-Drowning Skills: One guy from the experiment hid under water for three whole days. Justified, since one of the effects of the experiment is that he can breathe underwater.