9-1-1 Sneak Peek: A Prank Gone Wrong Leads To The Show's Grossest, Most Eye-Popping Moment Yet — Watch

9-1-1 has become infamous for its stomach-turning, worst-case-scenario emergencies, but tonight's episode (Fox, 8/7c) puts all previous calls to shame. Prepare to cringe, dear reader.

TVLine's exclusive sneak peek of the episode, appropriately titled "Fools," finds the 118 responding to a viral stunt gone wrong, getting way too close to a victim's eyes in the process. (Seriously, if you're even slightly averse to eye stuff, you should not watch this clip.)

9-1-1 resumed its third season last week with a series of life-altering surprises: Buck was given a clean bill of health, allowing him to return to action full-time; Chimney's half-brother Albert showed up, immediately hitting it off with the rest of the 118; Hen and Karen got to meet their new foster baby; and Michael told his family that he isn't going through with the surgery to remove his brain tumor, much to Athena's dismay.

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And there's still plenty to look forward to this season, including the reveal of Eddie's full backstory, the arrival of Rumer Willis in a yet-undisclosed role, and the long-awaited (albeit temporary) return of Connie Britton as Abby Clark.

Hit PLAY on the video above (if you dare!) for an exclusive preview of tonight's 9-1-1, then drop a comment with your thoughts below.