SMG4: The Internet Graveyard is the twenty-eighth episode of Season 10 and the five hundred and eighty-second overall to be uploaded by SMG4.
Dead memes tell no tales ☠️
The episode starts at Mario's House, where Luigi is seen relaxing while listening to music on his AirPods, until an Oof Button suddenly appears and abducts him. Luigi is dropped off at the Internet Graveyard, where he meets Mario and a mysterious person (who Mario recognizes as Axol) before the latter attacks the brothers. After a lengthy confrontation, Mario does the Naruto Run on him, making Axol regain his memories.
As Axol goes sane, he tells his story of how he ended up in the Internet Graveyard: because of Mario summoning the Oof Button three weeks prior, breaking Inkweaver upon arrival and driving him insane because of all of the dead memes that live in the realm. As Mario laments the broken Inkweaver, they are suddenly ambushed by a colony of Ugandan Knuckles trying to take them away. They manage to escape when Axol feeds them Tide Pods.
After showing his handmade anime to the brothers and showing a bout of insanity, Mario asks Axol for a way to get home. He says the only way to leave the Internet Graveyard is to make a dead meme relevant again. Luckily, Mario happens to know a local expert on memes. However, since there is no reception in the Internet Graveyard, they need to adventure to a Starbucks Coffee near the realm's temple to get Wi-Fi. The trio travels far and wide throughout the cursed realm for Starbucks. One of their escapades including a desert filled with irrelevant YouTubers (Such as Fred Figglehorn).
They eventually arrive at the temple, where they are immediately denied by the lords of the temple access to the Starbucks. When everyone sees the guardians' toilet overflowing, Mario decides to use his plumbing skills to fix it. The guardians are overjoyed and allow the heroes to pass. But before they can, the toilet suddenly breaks away from its base and is sent flying towards one of the guardians killing him. Outraged, the rest of the guardians chase the trio into the coffee shop.
Mario, Luigi, and Axol get into Starbucks, and thanks to the Wi-Fi signal, Mario is able to call SMG4 on his iPhone for help, thus enabling him to revive a dead meme. SMG4, with Mario's suggestion, his meme trading skills and some help from Meggy and Bob Bobowski, manages to revive the Harambe meme, allowing the three to escape the Internet Graveyard.
Back in SMG4's room, SMG4 asks how they got there in the first place. Mario tries to explain, but has a toilet break first. Wondering where Harambe is, the rest see him flying out to the sky, with the three admiring him flying into the sunset as the episode ends.