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 (season 3)
The third season of the television series Angel, the spin-off of "Buffy the Vampire Slayer", premiered on September 24, 2001 on The WB and concluded its 22-episode season on May 20, 2002. The season aired in a new timeslot, Mondays at 9:00 pm ET. This was the first season where "Angel" and "Buffy" didn't air on the same network, as "Buffy" had moved to the UPN network beginning with its sixth season.