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".
Not Fade Away (Angel)
Joss Whedon quashed the rumors that Sarah Michelle Gellar would appear as Buffy in an interview with TV Guide, saying he did not want the finale to "revolve around a guest star." He added that "I want to end the show with the people who've been in the trenches together, the characters who have lived - and occasionally died - together." Writer Jeffrey Bell elaborates, saying Gellar was intended to appear in the penultimate episode of "Angel" but couldn't make it due to other commitments. By the time the producers learned she was available for the finale, Bell says, "to force her into the very last episode to reread stuff that we already dealt with didn't make any sense."