A surprisingly large number of promotional photos have the Gang huddled together and legitimately enjoying each other's company.
In "The Nightman Cometh" after the Waitress denied Charlie's marriage proposal, Frank was the only one who tried to comfort him. But of course it was then rendered null by one line.
Frank: It was a great musical Charlie. You did a great job. She ain't worth it. And by the way, I think that rape scene went really well.
There's a legitimate one at the very, very, very end of "A Very Sunny Christmas", which has the Gang finally all together for Christmas throwing rocks at trains, and a flashback to a young Charlie and Mac doing the same and being surprisingly sweet.
And also Frank's change of heart and the Gang's reaction to the gifts he gets them, especially Dennis' excitement. At least, until the experience is ruined when the presents are all stolen by Frank's old business partner.
While the writers try to avoid showing any thing that can be considered heartwarming, the episode "Mac and Charlie: White Trash" ends with the Gang cooling off with a fire hydrant. There are no jokes, no mockery, no bickering, just a group of friends laughing and sharing a genuinely enjoyable time.
In "The Waitress is Getting Married," even though she acted like a horrendous bitch and humiliated the Waitress, when her fiancé comes back to Dee's apartment and confesses he still is in love with her, the small silent smile on her face was just a little touching.
And, of course, Charlie gives the waitress's would-be fiancé, who had only been manipulating her as revenge for being turned down in high school, a gift: a box full of hornets.Awww...
He did look like he was going to have second thoughts, before he found out about the fiance's intentions.
Charlie's reaction in "Charlie Kelly: King of the Rats" when the Gang makes him a new rat stick is amazing, as is the whole plot of the episode, with the gang coming together to give Charlie a great birthday as thanks for him doing all the dirty work at the bar. And they still give him his gifts when they find out it's not even his birthday, but Frank's.
The entirety of "Dee Gives Birth." From Dennis' genuine concern for Dee when she is in labor (even wanting to be in the room when she gives birth) to the looks on the Gang's face when Dee was getting rolled down the hallway, baby in hand. Set to a Kate Bush song no less. Later, they even laughed at one of her jokes. Who would have thought that this show could pull off a truly touching moment?
And at the end it turns out that Dee was actually the surrogate for Carmen the Transsexual and her husband Nick. While Dee states later on that she hated being pregnant, the fact that she helped this couple achieve their dreams of having a family is a very kindhearted gesture on her part.
After the credits, there's a picture of a baby, stating the episode is dedicated to Kaitlin Olsen and Rob McElhenney's real life son Axel who was born around that time.
Soon after they meet their real father, Bruce Mathis, Dee and Dennis actually look genuinely happy singing on stage with him at his charity performance.
In "The Gang Goes to Jersey Shore," when Charlie meets the Waitress and they spend the evening together. For a show like this, it's almost too heartwarming to believe. So obviously, it's subverted when the Waitress reveals she was on ecstasy that night, and shuns Charlie the next morning. However, it's Double Subverted when it's revealed Charlie honestly doesn't care that she was high, and enjoyed the night on its own merit. Aww....
In "The High School Reunion", when one of the Gang's old high school bullies tells everyone that Dennis was not really in the cool group back in high school since all he really did was hang out with Mac and Charlie all the time. It really shows that Dennis is friends with those two because he really likes them.
Not only that, but he spent so much time with them that it only allowed him to put in a token effort at being one of the popular kids. Dennis prioritized hanging out with his real friends over even attempting to be popular and stroking his ego, which, considering the size of Dennis' ego, is really saying something.
Mac's father, despite being sent back to jail because of his own son and then later having Charlie and Mac try to sabotage his parole hearing, tells Mac that no matter what his son has done to him, he will always love him.
"The Gang Dines Out" features a surprisingly heartfelt moment from Dennis of all people — who's sorely lacked for Pet the Dog moments in the preceding few seasons — when he publicly confesses that knowing Mac always had his back was a key to building self-confidence in his early years. Inevitably, Dennis fouls it up a little with a tale of sexual conquest better left undescribed here, but it's still a genuine expression of friendship, entirely free from his usual manipulative machinations.
The episode also boasts another extremely rare everybody-gets-along ending, like the aforementioned "Mac and Charlie: White Trash" and very few other episodes in the series. The waiter's downfall instantly mends the divide between Dennis & Mac and Charlie & Frank, and when they find out Dee arranged it by tying the waiter's shoelaces together, they respond with praise and welcoming of a kind that Dee virtually never receives from them. Of course, the joke is that by now, everyone else in the restaurant utterly despises the gang, so that the funniest outcome would be for them to be too absorbed in enjoying each others' company to notice or care. Even so, in its own misanthropic way, this is one of the few truly feel-good endings the show's ever run.
From way back in season 1 when Mac accidentally punches Carmen for sneaking up on him, two guys react in disgust to Mac hitting a lady. Mac tries to brush it off by saying that Carmen is actually a male-to-female transsexual. The bystanders still chase Mac down, because now they see Mac as a transphobic bully in addition to a woman beater.
Subverted in "The Gang Broke Dee". The Gang seems genuinely concerned about her and supportive of her new career, until it's revealed that it's just one big plan to show her things could be worse, because they found her mopey "broken" behavior annoying and wanted to get back at her for joking about suicide.
However, it seems like Dennis wanted Dee to be happier (and out of their hair), and thought that if she did go with the plan of trying to continue her new career, she would become more depressed and kill herself. Plus, he wasn't in on the plan to show her things could be worse, and even told her he loved her.Double Subverted?
"The Gang Tries Desperately to win an Award" has the Gang admitting that they don't need an award to feel special. They decided that an award doesn't matter as long as they like themselves.
The fact that the Gang has no problems with the fact that Mac is gay in "Mac Day" and are actually annoyed that he's denying his true sexuality is surprisingly tolerant of them.
Just knowing that this group of people who do horrible things to each other still do genuinely care for one another is a Crowning Moment of Heartwarming in itself.
Played With. Although while it is quite mean-spirited and cynical in the context of the situation, in the ending of "The Gang Squashes Their Beefs", the Gang end up agreeing that they shouldn't care about their relations with others because they still have each other.
Dee and Charlie bonding throughout "The Gang Misses the Boat." It's really nice to see that without the toxic influence of the rest of the gang that the two of them can actually encourage and support each other enough to get somewhere close to normal. The making out and probable sex may have ruined the relationship with awkwardness, but it was nice too.
When Charlie fainted in Chardee Macdennis 2, both Dennis and Dee were there to see him recover and said that they were worried and glad he survived. This being Sunny, it is immediately ruined by the two telling Charlie that his team lost because he cried immediately when the Waitress started talking and they burn his team's flag while smashing the figures.
While it is more underplayed, there's no deny that Mac's father Luther genuinely loves his son and wants to make amends, as demonstrated in "Dennis Looks Like A Registered Sex Offender," Luther got arrested for violating his parole: he's not supposed to leave the state, but had purchased plane tickets for himself, Mac and Charlie to visit the Baseball Hall of Fame. In "Mac And Charlie Dies Part 2", after getting out of jail again, Luther writes Mac a letter saying he still loves him even after Mac attempted to frame him for sexual harassment and that he's trying to learn to forgive Mac.
An easy-to-miss set detail, but one that says a lot: In later seasons, there is a picture of Ernie, the Recurring Extra whose actor died early in the show's run, hanging above the bar. It's both a nice tribute to the actor and a surprisingly touching gesture for the Gang to make In-Universe. Maybe there really was someone outside the five of them whom they all cared for.
"Being Frank" ends with our first look at Charlie and Frank playing Nightcrawlers.
There are few moments towards the end of "The Gang Goes To Hell Part 2", when the Gang are trapped together in a small room on sinking cruise ship that's slowly filling up with water:
Dennis sincerely telling Dee that he loves her before they both go under, even though she blows him off.
The final exchange between Mac and Charlie before they join the others under the water:
Charlie: I can't believe nobody came to save us. Shall we do this?
Mac: Let's go be with the Gang.
The entire Gang holding hands beneath the water as they wait to drown. It's undermined seconds later once they realize they're being rescued and start kicking the crap out of each other to reach the surface, but in the moment it's a genuinely sweet, heartfelt gesture that shows the five of them really do love each other in their own warped way.