Seras and a team of Hellsing commandos raid a warehouse district after reports of a supposed cult emerge, with a dead vampire and a bomb trap intended to reduce their manpower. Integra attends a covert meeting with a secretive government organization known as the Round Table when two vampire brothers named Luke and Jan Valentine launch a surprise attack on the Hellsing mansion with a large ghoul army armed with guns and shields. As they overwhelm the mansion, Hellsing soldiers with Alucard, Seras and Walter fight off the vampire hordes.