In 2071, Halloween is a big time national holiday on Mars. However a few days before Hallows Eve, a tanker truck was blown up in the middle of a busy street. The substance from the explosion contained an unknown virus thats infected several victims. This is the work of a terrorist who has a scheme in using this virus to kill millions of people across the galaxy. 300,000,000 Woolongs is the bounty on the terrorist. That made the Bebop Crew start investigating and finding out who the terrorist is. But when they learned who it is and what the virus is, things become bizarre and peculiar.