It's Always Sunny in Philadelphia · S18 · E3
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.
About this episode
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.
Season 18
1Frank Marries a Corpse
23 minAug 17, 2026★ 7.6
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.
2Dennis and Dee Don't Get Rich
23 minAug 17, 2026★ 7.8
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.
3The Gang Gets Tested
24 minAug 24, 2026★ 7.4Now viewing
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.
42026: A Virtual Insanity
21 minAug 31, 2026★ 8.0
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.
5The Gang Goes to the Ren Faire
23 minSep 7, 2026★ 8.0
Mac, Dennis, and Dee strive to conquest their way onto the Quilt of Legends at the local Renaissance Faire. Charlie discovers a love of luting while Frank tries to acquire the faire from old foes.
6The War on Alcohol
24 minSep 14, 2026★ 7.5
The Gang takes the trend against drinking into their own hands. Dennis, Dee, and Frank look to recruit white collar suits for happy hour while Mac and Charlie seek to enlist blue collar factory workers so they can return the bar to the melting pot it once was.
7Gilligan's Island: A Conspiracy Theorist's Paradise
Sep 21, 2026
Mac and Charlie drink the proverbial Kool-Aid while trying to uncover the mystery of why 'Gilligan's Island' never made it to 100 episodes.
8Mac and Dennis Tear Their ACLs
Sep 28, 2026
After a Christmas card catastrophe, Charlie nurses a bedridden Mac and Dennis and deliberates on which one is the originator of all their ideas. Dee and Frank are tired of being the bottom of the communication ladder and decide to flip the script.
9Frank's Team: A Dark Day for Baseball
Airs Oct 5, 2026
In an effort to clean up their image, Paddy's sponsors a local Little League team. But when The Gang spots softness in their franchise, they impose a radical new culture: win no matter what and do whatever it takes to get ahead.
10The Guys Have a Sleepover
Airs Oct 12, 2026
Blinded from LASIK surgery, Dee pleads for the guys to spend the night to keep her safe from neighborhood crime, but they listen to the wolves inside themselves and opt for a dudes-only sleepover of their own.
Guest stars
