A trailer for the upcoming English release of Darker than Black, offered by FUNimation - along with the first three episodes - ahead of the anime's November 25 DVD release in North America. The story of Darker than Black - Kuro no Keiyakusha begins ten years ago in Tokyo, with the appearance of a bizarre field that is impossible to analyze. Coinciding with this "Hell's Gate" is the appearance of humans possessing new forms and new powers. These criminally insane beings are fearfully called "Contractors" and sometimes brutally murder others.