"Mac Day" is the fifth episode of the ninth season of It's Always Sunny in Philadelphia.
Everyone in the gang gets a day to do what they want while everyone else in the gang must participate willingly. This is Mac's Day...and it's got twice the "Mac".
Mac decides his special day will be a (somewhat half-assed) version of the Biblical 7 days of God's creation, which he then "infuses" with the theme of "Bad Ass". Mac quotes from Genesis several lines with all contain the word "water", which Mac interprets as a sign he should perform a bad-ass stunt over Philly's Schuylkill River. He is joined by Country Mac (Sean William Scott), of whom the gang are initially weary ("Dear God, there's two of them.") The gang also note that Mac had an erection during most of his speech.
Mac explains he will jump from a bridge into the river, but then reveals that he won't actually jump and will "draw in" the jump with "post-effects", so the gang must act amazed to make it look real. Country Mac reveals he is the real bad-ass by safely making the jump (without spilling his beer). Mac tries to leave Country Mac for dead, until he surfaces unharmed.
Mac then skips days of creation 2 and 3 because they are about animals and therefore totally lame. Mac takes the gang to a Planetarium to see God's creation of the heavens, where Country Mac again shows how much cooler he is by smoking a joint with them and explaining his much more enlightened view of God ("Sure, bad things do happen. But what about sunsets, french kisses, and the smell of rain? That's why I believe in God; not because of the things He takes away from us, but because of the things He gives to us."), which greatly impresses the gang. Dennis reflects that while he thought he hated karate, Project Bad-Ass, and God, in reality he only hates Mac, who "makes all those cool things suck." Dennis worries that Mac is not only ruining his life, but also his after-life. The gang all agree.
Mac moves on to the 6th day, in which God created Man. Mac therefore brings the gang to grease-up "beef-cakes" (male bodybuilders). The gang are desperate to escape, but Country Mac declines to help, revealing he is gay and is "getting numbers left and right." The gang congratulate him on his healthy attitude regarding his sexuality. Mac quickly gets angry that the gang aren't greasing dudes fast enough and they are "drying up over here." The gang notice that, predictably, Mac has another erection (presumably because of the nearly-nude male bodybuilders).
Next, Mac bring them to a karate tournament, not because he intends to compete, but as God rested on the 7th day, he will rest and judge the karate matches. The gang conspires to sign up Mac in order to expose his total lack of skills in karate and delusions there-of. Mac claims he doesn't have the right gear, despite being dressed in a Gi (which "is the gear"). Mac scores a single point due to blind luck, but is then pummelled to the ground. Country Mac takes exception and attacks Mac's opponent, nailing him in the face with a can of beer and sparking a massive brawl, Country Mac then removing his shirt to choke the man.
Mac later tries to claim he won the fight, and Dennis demands Mac admit he lost and sucks at karate. Mac's opponent returns to threaten the gang with his muscle, a large man in whose boot Country Mac "clocks" a knife by utilizing a much more effective version of Mac's "ocular pat-down". Country Mac grabs the knife and scares off their attackers. Mac, terrified, shits himself, ruining his gi. The gang, having had enough, ask Country Mac to replace Mac and be the new member of the gang, and Country Mac agrees immediately.
As the gang reflect on how cool Country Mac is, he rides off on his motorcycle without a helmet. However, Country Mac then falls of his bike, hitting his head and sustaining mortal injury. At Country Mac's funeral service in the bar, the gang reflect that riding a motorcycle without a helmet isn't all that bad-ass, and Mac sermonizes judgementally against Country Mac's homosexuality. The time runs out on Mac Day, making it Frank Day. The episode ends as Frank dumps Country Mac's ashes into the toilet.
- Seann William Scott as Country Mac
- The "ocular patdown" was first mentioned in "The Gang Hits the Road", and the concept was expanded upon in the episode "Pop-Pop: The Final Solution". In both of those cases, City Mac's ocular patdowns were nowhere near as effective as Country Mac's ocular patdown here.
- The theme of Mac being in denial about his homosexuality has been a running joke on the show for some time now. In this episode, The Gang confirm that they all believe Mac is gay, even though Mac himself has yet to realize it. The previous episode that probably most directly deals with it is "The Gang Gets Analyzed", in which Mac is seen sucking on a pen that he believes "looks like a dick". Mac will actually briefly come out of the closet in the two part Season 11 finale "The Gang Goes to Hell", but later events will cause him to reverse that.
- The gang references their knowledge of Mac's possible homosexual tendencies when they refer to Country Mac's "loud and proud" gay lifestyle as "refreshing to hear".
- In the episode, every member of The Gang has the sleeves of their shirts removed, which is a reference to Mac's obsession with sleeveless shirts.