The 25 Best "It's Always Sunny" Episodes

The most genuinely funny and original episodes are also appreciated in this list.
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1.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.7/10 X  
After Mac's father is released from prison, Mac and Charlie stage their own deaths to save their lives. (22 mins.)
“ THIS INCLUDES BOTH PARTS AS A WHOLE

Mac: "So you're sure we'll have enough money for this and the wedding dress, right? 'Cause ... that is a great gun."
Charlie: "We're not buying the wedding dress."
Mac: "Yeah, we're buying the wedding dress!"

"Hey, I'm not burning the duster! Okay, I'm not burning the duster. Alright. That's crazy. That's like...that's insane. Why would I ever burn...heh...I mean c'mon...I will continue to wear it in his honor and I will burn some other things. You know, maybe like these stupid god damn sleeveless t-shirts that he wants "retired" and hung up in the bar. I'll burn these, but I am not burning the duster. Okay? So forget it. It probably won't even burn anyway. It's not supposed to, it's flame retardant. That's like the whole point. It's like a shield of armor. So stop asking me to burn the duster! I'm not going to burn it! So...end of story, you know? Let's just move on. Okay? So...yeah, alright, well uh thank you." - Dennis ” - Dimitri Hatgis
 
2.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: Mac and Dennis Break Up (2009)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
Taking Dee's advice seriously, Mac and Dennis decide that they're too co-dependent on each other and need to spend time apart. Meanwhile Charlie and Frank help Dee out with a major cat problem in her apartment. (22 mins.)
 
3.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.9/10 X  
While Mac, Dennis, and Charlie use their classic setup to sell gallons of gasoline door to door, Frank subjects Dee to a series of torture and mind games when he suspects that Dee is trying to kill him while the two plot to steal their inheritance from Bruce Mathis. (22 mins.)
“ "How about we all go in the back and have great sex?" - Charlie ” - Dimitri Hatgis
 
4.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
After stumbling upon a kilo of cocaine, the gang is forced to pay off a $25,000 debt to the mob. Mac becomes a mob informant... (22 mins.)
“ THIS INCLUDES BOTH PARTS AS A WHOLE ” - Dimitri Hatgis
 
5.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.5/10 X  
After Dee suffers a heart attack, she and Dennis try a healthier lifestyle. Charlie and Mac join the corporate work force to get health insurance. (22 mins.)
“ "Daaay Bow Bow, ohhhhhh yeeeeaaaa" ” - Dimitri Hatgis
 
6.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Gang Hits the Road (2009)
    1 2 3 4 5 6 7 8 9 10 8.8/10 X  
The gang takes Dee's new subcompact car and a U-haul on the road with the intentions of hitting the Grand Canyon, and Charlie attempts to expand his horizons. (22 mins.)
 
7.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
Mac & Charlie attempt to fix up their old pool after getting rejected by a country club, Dennis, Dee, and Frank attempt to gain entry to the club. (22 mins.)
 
8.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: Mac Bangs Dennis' Mom (2006)
    1 2 3 4 5 6 7 8 9 10 9.0/10 X  
Tensions run high in the gang when Mac courts Dennis and Dee's mom and the two organize a stakeout to blackmail Frank and get out of "Charlie work". (22 mins.)
 
9.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
After Dee gets cast as an extra in the new M. Night Shyamalan movie, Mac and Charlie see a perfect opportunity to pitch their script, while Frank becomes a casting agent for Dennis. (22 mins.)
“ Mac: "Who's the most underrated actor of all time?"
Charlie: "It's Dolph Lundgren."

"He fights crime with his brain and his brawn. Should we be writing this down?" - Charlie ” - Dimitri Hatgis
 
10.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.7/10 X  
The McPoyle brothers and sister Margaret take the gang hostage at Paddy's, raising the stakes to a new level in the feud between the two groups. (22 mins.)
 
11.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: Mac Is a Serial Killer (2007)
    1 2 3 4 5 6 7 8 9 10 8.8/10 X  
After reading that a serial killer is on the loose, the gang notices that Mac is acting shady and decides to find out if he's the man behind the murders. (22 mins.)
 
12.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.8/10 X  
After Charlie accidentally puts Paddy's Pub up for 1st prize in a local dance competition, Frank makes the gang participate in the contest... (22 mins.)
 
13.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
As they prepare for the annual Pub Crawl, the gang is horrified to learn that they face competition from a new Korean bar. (22 mins.)
“ The Duster. ” - Dimitri Hatgis
 
14.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
While Frank buys a foreclosed house with intentions of selling it for profit, Mac and Dennis become hot-headed real estate brokers, and Dee takes advantage of a suburban couple looking to hire a surrogate mother. (22 mins.)
 
15.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
Charlie manipulates Mac and Dennis when he accuses the two of them with sleeping with the coffee shop waitress. (22 mins.)
 
16.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Gang Sells Out (2007)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
A corporate chain offers to buy the Paddy's Pub, leaving Dee and Charlie unemployed and forcing them to find jobs at another restaurant, where they abuse their positions and take advantage of the manager, who is Dee's friend. (22 mins.)
 
17.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 9.1/10 X  
While Dennis and Dee try to figure out if the rapper Dee is dating has a mental handicap or not, Charlie, Mac, and Frank try to start their own band without knowledge of how to play musical instruments. (22 mins.)
 
18.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Nightman Cometh (2008)
    1 2 3 4 5 6 7 8 9 10 9.6/10 X  
Charlie stages a rock opera based on his song "Nightman," and recruits the rest of the gang to help him with it. (22 mins.)
 
19.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Gang Buys a Boat (2010)
    1 2 3 4 5 6 7 8 9 10 8.5/10 X  
The gang attempts to open themselves up to the adventures of the sea after they purchase their 'new' boat. (22 mins.)
 
20.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 8.9/10 X  
Dennis and Dee quit their jobs and concoct a plan to get welfare benefits so they can pursue their unrealistic goals and dreams. (22 mins.)
 
21.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: Mac's Big Break (2010)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
After Mac wins a radio contest to score a goal on the Flyers' ice, he and Charlie train for the event - badly, while Dennis and Dee start their own radio program. (22 mins.)
 
22.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Gang Runs for Office (2006)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
When the gang discovers that if you run for office that people will pay you to quit. So of course, the gang exploits this and so Dennis runs for office. While at the same time Frank and Charlie tries to stop this, which ends up in a feud. (22 mins.)
 
23.
It's Always Sunny in Philadelphia (2005 TV Series)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
In order to get Paddy's recognized by the city as a historical landmark, Mac, Dennis, and Charlie flash back to 1776 to tell the tale of the Paddy's crew's involvement in the cracking of the Liberty Bell. (22 mins.)
 
24.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: Charlie Has Cancer (2005)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
When Charlie confidentially confides that he has cancer, it leads to a series of instances of the guys manipulating women and one gorgeous transsexual (not a transvestite). (22 mins.)
 
25.
It's Always Sunny in Philadelphia (2005 TV Series)
Episode: The Great Recession (2009)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
Mac and Dennis try to cut back Paddy's expenses by firing Dee and Charlie, and Frank figures out a clever way to keep the bar afloat. (22 mins.)