It's Always Sunny in Philadelphia
The Gang Gets Tested
Season 18, Episode 3 · Aired 2026-08-24
Synopsis
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.
In the series
This episode is part of It's Always Sunny in Philadelphia (2005–present) on FX.
Five terrible people, infinite schemes — the anti-Friends.
Key cast
- Charlie Day as Charlie Kelly
- Glenn Howerton as Dennis Reynolds
- Rob McElhenney as Mac
- Kaitlin Olson as Dee Reynolds
- Danny DeVito as Frank Reynolds