It’s Always Sunny in Philadelphia Season 18 Episode 8 photos preview “Mac and Dennis Tear Their ACLs,” airing Monday, September 28. After a Christmas card catastrophe leaves Mac (Rob Mac) and Dennis (Glenn Howerton) bedridden, Charlie (Charlie Day) ends up caring for them—and wondering which of the two comes up with all their ideas.
Meanwhile, Dee (Kaitlin Olson) and Frank (Danny DeVito) have had enough of being the last to hear what the Gang is doing. They decide to change their place in the communication chain.
When Does “Mac and Dennis Tear Their ACLs” Air?
It’s Always Sunny in Philadelphia Season 18 Episode 8 airs Monday, September 28, 2026, on FXX and streams on Hulu. Visit the official FX series page for more on the show.
Season 18 continues Monday, October 5, with Episode 9, “Frank’s Team: A Dark Day for Baseball.”
Visit Seat42F’s It’s Always Sunny in Philadelphia coverage hub for more episode photos, recaps and series news.
It’s Always Sunny in Philadelphia Season 18 Episode 8 Photos: “Mac and Dennis Tear Their ACLs”
Thomas Miller is the founder and Editor-in-Chief of Seat42F, covering television, movies and streaming entertainment. He launched Seat42F in 2007 and has spent nearly two decades covering the entertainment industry.
