Basket digs down to bedrock under Iron Island, builds a hopper pad for the second mob farm and hooks it into the item elevator. JJBonsig joins near the end.
The Iron Island item elevator is finished, so Basket digs out room for storage, runs a water stream over the hoppers with packed ice from johnfal_92, and starts lining it with chests.
Seven emeralds on the wall, a spawner wrecked, a Fortune pickaxe found, and Basket giving up on the grounds that he has become a large floating shield.
The item elevator needs the spot where the iron golems die, so Basket builds them two new kill chambers, then lights the bedrock floor with sea lanterns.
Basket repairs everything at an enderman farm, then spends the stream making the Iron Island item elevator look like a warp core: light blue glass, white rings, sea lanterns.
A trap built out of clutter and misdirection catches Basket before the recording even starts, and the episode ends on six cave spider spawners stacked together.
A built dwarven hall with beds we are not allowed to sleep in, a wrong turn into an area far above our level, and a death that Scoti avenges personally.