The white wool is up there somewhere among the spires of the lava cave. This is the episode where they go and get it, mostly by digging where they aren't supposed to.
Sniper duel
A creeper jumps in. Block with your shield, says one. I don't have a shield, says the other. He has the resources to make one and refused to listen, but he makes one now. The advice: whenever you hear the creeper hiss, turn toward the sound and block, and then you don't die. Amazing, he says, with a little bit of attitude.
From up on the platform it's a heck of a view. A ghast shows up and it's a sniper duel. I'm the best. The honeypot on the lava is performing well, too. One of them runs out of arrows and scrapes 19 back off the ground. There's a skeleton spawner up there, a ghast spawner, and a spider somewhere. If that last shot had hit, it would have been over, because that bow has Punch.
So much for the bridge
A little pillar turns out to have TNT underneath it. So much for the bridging plan, or at least it's going to be a little more manual than they thought. The good news is the poison spiders are gone.
An elevated spawner sits on the far side of a stalagmite. Can he have the Infinity bow? No. So it's pillaring, the safer way they did it before, using iron ore for blocks when the cobble runs low. A skeleton spawner goes down, then a second, a third, and a fourth. They weren't quads. Ladders run low too, about 14 left.
Up through the ceiling
Then it gets strange. One of them ends up inside the structure where the white glass is, and there's nothing there. Meanwhile, a bunch of lava starts pouring down in a circle in the middle of the map. Maybe going in there triggered where the thing actually is. Maybe it's just more TNT.
So one of them digs up into the ceiling and tunnels across, around 60 blocks, listening to TNT going off nearby. Most of the time the TNT doesn't explode too far out. The other is putting up guardrails, very carefully. Looking around from where the glass was gives them the clue: go back up into the ceiling and over. The bridge isn't complete, and the floor will probably disappear soon. One of them worries out loud that the explosions will blow up the wool and they won't be able to beat the game.
White wool, side by side
They get it. On Basket's screen there's a Wool Chest with a row of white wool, with stacks of fireworks in the corners. You got it. I have one, give one to me.
Now they just have to run back along the outside wall past the ghasts. It's not like there's a lot of ghasts around. One runs a little way behind the other so the ghasts aim at where the first one was. As for the last wool, there's one hallway in the black wool area they never took. They run back side by side, take out one more skeleton spawner, and make it to the ladder. We're gonna win. They'll celebrate at the start of the next episode.