The wool for the last area is already on the monument, but the area isn't done. There are emeralds in it they never found. This episode is the cleanup pass: back through the jungle cave, checking waterfalls and odd lights in the walls.
A house, and a box of light
It opens in front of their house. Before leaving, one of them wants to check a far corner by a waterfall that they never looked at.
The first find is not an emerald. A chest up the waterfall holds grass path blocks and an iron shovel, which is odd, because there is no grass in this area to make path blocks from anyway. Meanwhile PTBarpun hosts the stream, and they say thanks.
Then, looking for "weirdness in the walls," one of them spots light coming from a little hidden box. There's an emerald inside. It goes straight into the monument chest, since one of them admits they can't be trusted to hold these things. There's glass to collect there too, and a plan to make every window in the house a different color.
A shortcut and a spare chestplate
Back in the jungle cave they go after the creeper and zombie spawners where they died a bunch early on. On the way they come across the cursed chestplate and a pile of bones that one of them had been accused of losing.
A tunnel turns out to have a teleporter in it. It leads to a shortcut to the intersection. A chest along the way, checked for traps first, holds an anti-projectile protection chestplate, the same kind one of them already wears. The other gets to pick, new or used, and takes the new one.
The waterfall emerald
It is night now and they didn't bring beds. They split up, get lost, and agree that team cohesion is strong today. One goes back for a music disc, which is that player's primary weapon.
Then Basket finds one at the bottom of the waterfall right where they came in. The emerald chest opens on Basket's screen. As Scoti puts it, sometimes they hide them in waterfalls.
The mouse dies
The other side of the cave is where they died the first time, and they never lit it up. There's clay, coal blocks, a witch to kill before she poisons anyone, and a zombie with a sword one of them wants. Then a wireless mouse dies in the middle of it. The chat shows Scoti leaving the game for a moment. A calendar reminder about another stream pops up and covers chat too.
Tune of Blessing
Once it starts getting light, they head higher. One carries an emerald and asks not to be allowed to die. A stone with a little light in it leads to a small room with a chest, and inside is another music disc sword: the Tune of Blessing, with Sharpness III, Fortune III and Looting III. It hits a bit harder than Basket's other one, but a sword still does more damage. They decide this is a good place to end the episode.