It's Always Sunny in Philadelphia
Season 18
4 listed hours · 2005–present · FX
From the desk
How this season is filed
Five terrible people, infinite schemes: Charlie, Dennis, Mac, Dee, and Frank reinvent cruelty without redemption as comfort. Rob McElhenney's FX comedy made trash humans into comic purity and then outlasted almost every live-action sitcom. The anti-Friends on purpose — fractal terrible, still formally inventive.
TV Flash files Season 18 of It's Always Sunny in Philadelphia (2005–present) on FX as the last listed season of 18 — 4 listed hours, 2026-08-17–2026-08-31 from “Frank Marries a Corpse” (S18E01) to “2026: A Virtual Insanity” (S18E04). Titles, dates, and synopses on file — no invented recaps.
Desk essentials in this season
- S18E04 2026: A Virtual Insanity
2026: A Virtual Insanity is the current bookend of a live-action sitcom that outlasted almost every peer — fractal terribleness, still not redeemed.
- S18E01
Frank Marries a Corpse
The guys help Frank with his cold feet ahead of his wedding to Sam. Dee tries to scare Sam off the nuptials with testimonies from The Waitress, Artemis, and Snail. Written by by Todd Biermann.
- S18E02
Dennis and Dee Don't Get Rich
The Reynolds twins push themselves to the limit to secure Sam's transfer of wealth. Charlie and Frank plan a proper memorial for Bonnie during the annual Mummers Parade. Written by by Todd Biermann.
- S18E03
The Gang Gets Tested
Dennis and Dee are diagnosed with ADHD, and even more shocking: Mac isn't. They go back to school for a do-over now that they understand their brains more better.
- S18E04
2026: A Virtual Insanity
The Gang's RV breaks down en route to a Jamiroquai concert, leaving them to fend for themselves in a dangerous wasteland of junkies and street people.
More from the 2000s.