The title card says Emerald 13, and they do get it. It costs them three deaths, most of their gear for a while, and one very angry zombie that ends up wearing their stuff.
Back on the ground
They walk back through the jungle on the ground this time. There are slime spawners on the right and a skeleton spawner on the left. An arrow comes out of nowhere, and it was the other one's bow. "You didn't have the helmet on, I was like, this is my chance!"
Then a wave of zombies. A golden shield turns up with 22 percent knockback resistance. Somebody catches fire ("Put me out, put me out!") and gets told to eat the bread. Nobody wants to give up any blocks: "I like all my blocks."
Slimes and a lake
There's a big lake they haven't been around yet. A spider jockey shows up, "super fast," which is not what they need. The jungle is crawling with slimes, invisible spiders and baby zombies. A magic book turns out to be Protection. A crowd of mobs following one of them gets called "a little train of Basket fans."
Somebody bets the emerald is in the waterfall or the water. It's in the lake, "just like you expected." Which lake takes a minute to sort out. "Which lake are you in?" "You and Ricki Lake."
At the top of the waterfall there's a path up to another level, and an ender chest.
Blown up
Getting the emerald out is where it goes wrong. The lake is full of creepers and zombies. "This is really bad down here, dude. Like, even worse than I imagined." Basket eats a baked potato at the edge, and then the chat line reads "BasketMC was blown up by Creeper."
Twice more
Basket walks back from spawn with nothing. On the way, the talk drifts to the show Limitless and how mentioning Vine dates it. The zombies have picked up the dropped gear. "They have all your good stuff." Silver Light gets offered up, "although it's about to be broken." Then "Scoti_Garbidis was slain by Zombie," and about a minute later "BasketMC was slain by Zombie."
Got the emerald
While Basket is walking back the second time, Scoti is down in the water. "Sacrificing myself to reset the emerald. Got the emerald." The zombie wearing their gear is tough, but "the big guy's dead," and the emerald goes up to the ender chest. "Emerald safe."
Who owns what
The rest is cleanup. They put down two chests and start sorting out whose stuff is whose. "We got killed by a horde of zombies. They weren't even special mobs." Silver Light seems to be gone, then turns up in the pile. There's a missing shield with a skull and crossbones on it, a clock nobody needs, and a lot of potatoes. They call it "the exciting sorting inventory game," and that's where the episode ends.