The counter says 69 deaths each, still tied from last time. Before they even start, a glitch makes a head go invisible while the arms still show through "the chain mailish stuff." The title comes from the intro, where BasketMC "stands for basket magic cool," because "the C's for the cool."
A torture chamber and a robe
Upstairs there are lots of bad guys, though the spiders are "not actually as scary as I would anticipate." One of them ends up "poisoned and on fire" for a moment. There's a pit with square gaps in it and spiders overhead, which gets called "a torture chamber." Past a doorway sits a trapped chest with lava in a hole behind it. One of them breaks the block underneath it first, and inside is the Robe of the Pyromancer. It's only leather, but it's unbreakable, and it has a small chance to hit every nearby enemy for 12 damage whenever the wearer takes damage.
Potions someday?
On the walkway, a ghast shows up behind them, and one of them asks the map's maker in chat whether they'll ever get potions. "The answer sure seems like the answer is no." They pop a blaze spawner, run into some mobs that are "new," and find a big painting with a chest behind it. Is it a trap, or does it have cookies?
Baby pigmen get under the stairs they blocked off, so anyone who dies will need to remember to clear it up. There's also a food check. "I have 12 and you have 12." Then: "You have 21! Why are you asking for food?"
The big guy
A side chest has a smite book, pork chops, bottles of enchanting, arrows and coal. Down in the next room is a crowd of pigmen, "including a big guy." One of them is killing pigmen in one hit, so the rest never get angry. That chest holds a Sharpness III book, a Sharpness IV Fire Aspect sword and experience bottles.
Charged creepers and pistons
Then "charged creeper made it out of the thing!" A proximity sensor sets off pistons, and even after they close it up, the pistons open, close and open again. Lava comes down, more charged creepers come out, and they hunt down the spawners one at a time until there's a "boom" and it's clear.
Wimpiness and Purifiction
A pit with glass over it has a water bucket in it. A chest nearby holds cookies and what one of them reads out as a potion of wimpiness: instant health, weakness and speed. In the library, another chest has a splash potion called Purifiction.
The last problem is gold nuggets that get picked up but never show up in the inventory. They take a break there. Nobody dies, so it's still 69 each. The monument isn't shown, so it stays at 10 of 16 crystals and 7 of 12 emerald blocks.