They're back in the burning sandstone cavern from last time, and the plan for the start is "explodey stuff." The counter reads Scoti 68, Basket 65 at the start. By the end it reads 68 each.
Fire and spawners
There's so much fire in the cavern that "it's not able to let things spawn in right now." That doesn't last. A blaze spawner sits right in the middle of the lava lake, there are creeper spawners somewhere in the walls, and fast creepers keep showing up. One of them digs into the wall where the creepers come from and finds one spawner, then another. A water bucket handles some of the lava. In the middle of all this, one of them spots "a big T over here."
Redstone tea
"Is it sweet tea or unsweetened tea?" "It's redstone tea." That turns into an argument about whether high tea is a snack or a meal, which nobody wins. The T is the way in to a set of doors, and a sign spells out how they work.
Another sign starts a story time and offers help "if you're having trouble finding all the keys." They don't need it. They found all the keys already.
Three keys, three doors
The worry is that stepping on the plate will teleport someone away, or eat the key. Neither happens. Key one goes in hand, step off the plate and back on, and the door opens. Door two is a trap: "trap, trap, trap." Dispensers hold silverfish eggs and a poison. One of them breaks the dispensers, takes the stuff out, and puts it in a chest so nobody throws poison by accident. Door three opens with no trap at all. "I was worried there's like a boss or something."
The cyan crystal
Then it's back to the monument. "Cyan crystal, here we go." The crystal goes in, and the chat says "Congratulations! You have defeated: SUMMONER'S LAIR." That makes 10 of 16 crystals. The six emerald blocks are still there, 6 of 12.
Waking the spawners
They don't think they've gotten all the emeralds yet, so they go back down, through a doorway one of them blocked off a long time ago, to a safe spot. The plan: wake the spawners, run back, and kill what follows them away from the spawners. "Operation activate."
It mostly works. Then they charge in. "Kill the top first." Somebody catches fire and needs water. "I killed the three that were in the thing, didn't I?" "No, the bottom one's still there." Then: "I see an emerald." So they can't just blow everything up.
Tied at 68
A pickaxe breaks. Then Basket falls into a hole: "I'm in a hole. I'm dead." The chat says "BasketMC was slain by Summoner's Guard (Elite)."
Getting back in is harder now. All the explosions may have cut off the way through. Two more deaths follow: "BasketMC was blown up by Blazing Creeper" and "BasketMC was blown up by Creeper." The blaze spawner in that area is down, but the emerald is still sitting there. "Well, I have good news. We're tied." The counter agrees, 68 each, going into episode 100.