In the village of Cheddar, some police are sent to a church. They come across a priest drinking the blood of a woman. The priest summons his army of ghouls, and has them attack the police. Nearby, Sir Integra Fairbrook Wingates Hellsing talks to the police chief, and informs him that what's causing this is a vampire. The police chief is skeptical, but she explains that the vampire is turning people into ghouls be feeding on them, and only by destroying the vampire can they be stopped. She then says one of their best agents is soon to arrive to deal with the vampire. The priest has cornered a police girl called Seras Victoria, and states he intends to violate her before turning her into one of his ghouls.

The agent Integra was talking about arrives: Alucard. The priest has his ghouls shoot him down, but he soon revives, as he himself is a vampire. He shoots all of the ghouls, causing the priest to panic and take Seras hostage. Alucard asks Seras if she's a virgin, and she says she is. Alucard shoots through her to kill the priest. He tells the dying Seras that she has a choice, and she accepts. Alucard sucks her blood, turning her into a vampire. Sometime later, Seras wakes up, her injuries completely healed, but she also realizes she has fangs. She's in the Hellsing HQ, and Integra tells her that from now on, she'll be working for them.

Hellsing is informed of another vampire attack, so Alucard and Seras are sent in to deal with it. There are two vampires, and Alucard quickly kills one of them. He tells Seras to kill the other one, who has run off. Seras says the vampire is too far away for her to shoot, plus it's dark and she has no scope. Alucard tells her those are human complaints, and she is no longer human. He tells her to imagine she has a third eye, and use that to aim. Seras taps into her new powers, and is able to kill the other vampire by shooting her through the heart.

In Ireland, Father Renaldo meets with Father Alexander Anderson. As members of the Vatican's special organization, Iscariot, they are aware of the vampire attacks in England. Renaldo reveals that a vampire has been spotted in Northern Ireland, and instructs Anderson to deal with it -and should Hellsing get in the way, he can deal with them, too. Alucard and Seras have located the hideout the vampire is at, and are killing the ghouls. Seras looks like she is about to drink blood for the first time, but then gets hit in the back by several blessed bayonets.

In England, Integra is informed that Anderson is on the move, so she decides to head to Ireland herself. Back in Ireland, Anderson confronts Alucard, and the two fight. Anderson gets shot in the head, but he reveals he's a Regenerator, and is able to heal himself from such injuries. He pins Alucard to a wall and cuts his head off. Seras manages to pick up Alucard's head and tries to get away, but is hunted down by Anderson. She hears Alucard's voice in her head, and he tells her to drink his blood, so she can truly become one of them.

Integra then arrives, and tells Anderson to back down. He refuses, and after killing Integra's two bodyguards, he attacks her. He says he's already killed Alucard by cutting his head off, but Integra laughs at this. She says Alucard is unlike any vampire he's ever faced before, and will soon revive. Alucard soon comes back to life.

He and Anderson start fighting again. Alucard has his arms cut off, but is able to instantly regenerate them. Anderson decides to leave, believing he needs to be better prepared to deal with Alucard, but states the next time they meet, he'll butcher them all. Integra asks Alucard if he's alright, and he says he is, although it has been a while since he's had his head cut off.

Alucard asks Seras why she didn't drink his blood. Seras says that if she did that, she believes it would mean the end of something important inside her. Alucard thinks she's an idiot, but maybe she has a point. Perhaps it's time for a vampire who does not walk alone through the night. Integra asks Alucard why he made Seras into a vampire, and he says he might be developing a sense of whimsy. He tells the police girl to come on, but she says her name isn't police girl, it's Seras Victoria. Alucard calls her a coward, and "Police Girl" will do. Seras thinks he's mean!

Manga Differences

-The opening scene in this episode, showing the younger Integra being hunted down by her uncle, doesn't happen until later on in the manga.

-The scene with Seras, Simon and Eddie going to the church doesn't happen in the manga. Instead, the manga starts with Alucard saying what a nice night it is.

-In the manga, there is a part showing the priest's arrival in Cheddar, how he'd never go out in the day, and how villagers started disappearing. The other villagers confront the priest, but he reveals he's a vampire, and attacks them. This isn't in the episode.

-In the manga, there is a short scene where a police man takes Integra to the police chief. This isn't in the episode.

-In the episode, as Seras is dying, she thinks about a traumatic experience from her past. This doesn't happen in the manga.

-The manga has a scene where Alucard brings Seras back to Integra and the police, and reveals she's now a vampire. This part isn't in the episode.

-In the manga, the next part shows Integra going to the dungeon. In the manga, when Integra's father tells her about Alucard, he's wearing a suit, and appears to be fine. In the episode, he's on his death bed when he tells her.

-There are some parts of the manga the episode cuts out, such as Richard realizing the underground sector hasn't been checked yet, and Integra jokingly asking the corpse if she can share his cell.

-Richard punches Integra first in the manga. He doesn't do this in the episode.

-In the manga, Alucard quickly and violently kills Richard's men, and then destroys one of Richard's arms. Richard manages to pick up a gun and tries to shoot Integra with it, but Alucard blocks the bullets. This was cut from the episode.

-The manga then has a scene at the Hellsing target practice, where Alucard tells Seras to not aim like a human. This was cut from the episode.

-In the manga, when Integra goes to the crime scene, she meets Malfas, a police chief. He fills her in about what has happened. This character doesn't appear in the episode.

-In the episode, Integra and Walter enter the house to look at what has happened. They don't in the manga, and Walter isn't present at all for this scene.

-In the manga, the vampire goes right up to the door to look through the peephole, where he sees Alucard waiting. This doesn't happen in the episode.

-In the manga, Alucard doesn't appear on the roof of the house when Seras is preparing to shoot the female vampire. He does in the episode.

-When Alucard and Seras are in Ireland, Alucard decides to take a break from shooting ghouls, and drinks some medical blood. Seras shoots a ghoul in half, but its upper body continues to function. Alucard shoots it in the head. This part isn't in the episode.

-In the manga, Walter and Integra are in different rooms of the HQ when they learn of Anderson's involvement. Integra has to call Walter via phone to tell him to contact the Vatican. In the episode, Walter and Integra are in the same room.

-In the manga, Anderson does not throw a bayonet through Alucard's decapitated head like he does in the episode.

-In the manga, Seras is sick after Anderson leaves. Integra asks Alucard if she was any more useful than before, to which Alucard responds with "the usual". This was cut from the episode, and replaced with dialogue about Alucard developing a sense of whimsy.

-The very last shot of the episode, showing a man talking about war, was not in the manga.