Integra takes over a small Hellsing taskforce in the town of Cheddar after learning that villagers are mysteriously vanishing.
Still grappling with her new life as a vampire, Seras faces a dilemma when she's ordered to kill a homicidal teenage vampire.
Seras and a Hellsing guerrilla squad are sent to neutralize a college student on a rampage after a computer chip turns him into a vampire.
After someone broadcasts a snuff film featuring an onscreen killing by a vampire, Integra dispatches Hellsing and Seras to investigate.
Bent on destroying the Hellsing crew, a pair of sibling vampires launches a sneak attack, aided by a legion of ghouls.
While Seras, Alucard and Walter battle on against the Valentines, dead Hellsing commandos rise as ghouls to increase their numbers.
With Hellsing's ranks decimated, Integra and Walter look for a way to fortify their manpower.
Seras and an MI-5 operative look into the growing number of cases involving "freak" computer chips that transform humans into ghouls.
After Integra's sister Laura arrives for a visit, Seras and Alucard begin to suspect that Laura has a hidden agenda.
During a risky operation to save her life, Integra recalls her first encounter with Alucard and what happened before she took over at Hellsing.
After learning that the queen will be attending a secret meeting at Hellsing's command center, Integra sends her enemies on a wild goose chase.
The British army is called in to quash Hellsing's commandos after the organization is labeled a terrorist group.
In the Tower of London, Alucard squares off against a powerful vampire known as Incognito.