It's Always Sunny in Philadelphia Season 18 Episode 3 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.

It's Always Sunny in Philadelphia Season 18 Episodes...

• s18e01 - Frank Marries a Corpse
• s18e02 - Dennis and Dee Don't Get Rich
• s18e03 - The Gang Gets Tested
• s18e04 - 2026: A Virtual Insanity

It's Always Sunny in Philadelphia Show Summary

Five egocentric friends who run a neighborhood Irish pub in Philadelphia try to find their way through the adult world of work and relationships.

Unfortunately, their warped views and precarious judgments often lead them to trouble, creating a myriad of uncomfortable situations that usually only get worse before they get better.