Angel (season 1)
At the end of the third season of "Buffy", the 242-year-old, re-ensouled vampire Angel left Sunnydale to give teenage Slayer Buffy Summers the chance to live a normal life. Angel is now living in the big city of Los Angeles. With Buffy gone Angel is now completely cut off from society, every day getting closer and closer to giving in to his vampiric hunger. It's not until he befriends the half demon and fellow Irishman Doyle, who is sent visions of people in trouble by The Powers That Be, and fellow Sunnydale resident Cordelia Chase, who grounds Angel's life in the humanity around him, that he truly begins to take charge of his life and seek atonement for his past sins. He sets up his own detective agency, Angel Investigations and begins to "help the helpless".
Angel (Buffy the Vampire Slayer)
Following on from this, Angel headlines the series "Angel and Faith", primarily set in London. Its stories aim to be respectful to the storylines featured in IDW's forty-four issue "Angel" run, and maintains a very tight continuity with "Buffy Season Nine" and other related comics. In his series, Angel faces the looming threat of his now unstable former mentor Whistler, who helped bring about his transformation into Twilight, as well as his two dangerous former acolytes, half-demons Pearl and Nash, in addition a group of British Slayers who cannot forgive his actions as Twilight. Along with Faith, he lives in Giles' London apartment where they are joined by Giles' ageless aunts, witches Lavinia and Sophronia. Angel intends to honor Giles' memory, and seeks to collect fragments of Giles' soul from magical items as part of a plan to resurrect him. In the series' conclusion, Giles is successfully resurrected, albeit as a young teenage boy, and the gang pursue Whistler, Pearl and Nash to a rooftop, where they plan to unleash a horrific magical plague on the world as an inelegant means to restore magic to the universe. Nash is killed, and Angel is able to persuade Whistler to see the error of his ways, successfully limiting to the extent of the plague to an area of Hackney in London. In the season's denouement, Faith returns to America alongside Giles, while Angel remains behind to guard over the plagued neighborhood, now called Magic Town, where residents—magically mutated into all manner of creature—are already causing problems.