Into Tarukane's stronghold, past the demon triad and into the basement to face the Toguro brothers.
The bromance holds strong, propelling the boys through their challenges and costing Tarukane a bunch of money. Miyuki gave Kuwabara something to think about regarding his code. The others weren't really worth the time at all. The contact with Yukina at the end was interesting, just a glimpse more of her character before the end of the episode.
This was mostly to move the plot along. And put our heroes in a basement.