The Scourge was an army of pure-breed demons bent on the extermination of every non-pure demon race on earth, as well as that of humanity itself. To this end, they sought to eliminate a group of Lister demons currently hiding in Los Angeles, intending to test their latest weapon, the Beacon- a device that emitted a light that destroyed anything with human blood that it came in contact with- on the Listers. Although Angel Investigations attempted to sabotage their attempts by having Angel infiltrate the group- claiming to loathe his 'half-breed' status- while they helped the Listers escape on a carge ship, the betrayal of the ship's first mate allowed the Scourge to get the Beacon on board the ship, the Beacon only being deactivated thanks to Doyle's sacrifice.