(NEXSTAR) — The fourth episode of FX's "Alien: Earth" shows off some of the series' most grizzly, gory and spine-tingling creature scenes yet. Prodigy is putting its alien research to the test — but how long until it all goes wrong?

Gear up, because a lot happens in this episode!

Spoilers ahead for episode four.

Though episode four, "Observation," picks up right where episode three left off with hybrid Wendy's newly discovered xenomorph-hearing (more on that below), the episode is better framed by its two big laboratory sequences.

Eye can't believe they did that

We're still on Prodigy's island, where synthetic scientist Kirsh (Timothy Olyphant) and Prodigy CEO Boy Kavalier (Samuel Blenkin) are finally putting Weyland-Yutani's eyeball octopus creature to use. If you happen to remember

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