Summary
The Yorkshin City Underground Auction attracts all: Gon and Killua for a copy of Greed Island, Kurapika for the Scarlet Eyes, the mafia for money, and the Spiders for everything. The Spiders wreck the mafia but one of them, Uvogin, is captured by Kurapika, who had honed her abilities in order to exact revenge on them. The Spiders save Uvogin but he seeks Kurapika for revenge. Kurapika defeats him and he chooses to die rather than to sell out the others. The Spiders vow vengeance and cause havoc in the city, despite their fortunes revealing they are likely to lose more members by staying. The Spiders eradicate the mafia and capture Gon and Killua but Kurapika captures their leader, Chrollo. One of the Spiders gives up her life and the Spiders give up their pursuit of vengeance in order to save Chrollo while Kurapika gives up his own quest for vengeance in order to save Gon and Killua. The dead Spider shares her memories with the others, who thank Gon for having let their leader live.
Kurapika
Will Kurapika get revenge on the Spiders for killing his tribe?
Spiders
Will the Spiders steal everything at the auction and get revenge on Kurapika?
Save Gon
Will Kurapika be able to save Gon?
Preparation
Gon and Killua find the memento Gon's father had left and learn about Ging's creation, Greed Island. Kurapika trains for revenge.
Yorkshin
Gon and Killua arrive at Yorkshin City in pursuit of Greed Island. Kurapika gets a job as a bodyguard a crime family attending the auction in order to get closer to the Scarlet Eyes. The Spiders plan to steal everything and kill everyone.
Auction
The Spiders kill everyone at the auction, but miss the treasure as the mafia's Shadow Beasts have moved it.
Shadow Beasts
Uvogin alone makes short work of the mafia and some Shadow Beasts.
Kurapika
Kurapika captures Uvogin, the Spiders follow in pursuit but are interrupted by the remaining Shadow Beasts.
Rescue
The Spiders recover the auction treasure and rescue Uvogin, who vows revenge on Kurapika.
Gon
The Spiders, seeking Kurapika, capture Gon and Killua instead.
Uvogin
Uvogin challenges Kurapika and is defeated. He chooses death rather than spill the secrets of the other Spiders.
Assassins
The mafia hire Killua's father and grandfather to assassinate the Spiders. The leader of the Spiders, Chrollo, captures the mafia prophet and steal her fortune-telling ability. Gon and Killua escape from the Spiders.
Havoc
The Spiders wreak havoc on the city. The assassins defeat Chrollo, only to spare him because their son, who had been hired by the Spiders to assassinate the mafia heads, had finished his job first.
Stay or go
The Spiders decide to stay in York Shin to seek revenge despite their fortunes revealing that some of them will die in the pursuit of Kurapika. They recapture Gon and Killua.
Lights out
Pakunoda of the Spiders reads Gon and Killua's minds to learn Kurapika's identity just as Kurapika kidnaps Chrollo.
The exchange
Pakunoda surrenders herself to Kurapika in order to save Chrollo, she releases Gon and Killua in exchange for Chrollo.
Paku wanted to say thank you
Pakunoda returns empty-handed to the Spiders, she dies in order to share her memories with them. Kurapika seals Chrollo's abilities and sends him away in exile. The Spiders tells Gon the dead Paku wanted to thank him for not killing Chrollo.