Act One: Drop Zone

Taking place before the Fall of Cadia and the 13th Black Crusade. The Imperial mining world of Colossus IV is being invaded by the Black Legion. Abbadon the Despoiler has sent Delta Squad, lead by the Black Legionnaire, Cyrus the Perfectionist behind the lines to disrupt and breach the Imperial defenses. However, the Adeptus Soroitas lead by Sister Agatha Clark remain steadfast to hold off the heretical invaders!