Buffy The Vampire Slayer (1997) - 4x15 - This Year's Girl (1)

Faith, still in a coma in the hospital, is dreaming of being pursued by Buffy. Riley, partially recovered from his encounter with Adam leaves the Initiative infirmary and joins up with Buffy. While Buffy and gang plot how to go after Adam, Buffy finds out that Faith has awoken. Faith wants revenge and confronts Buffy. A message from the Mayor and a mysterious device come to Faith through a friend of the Mayor's (a demon who Faith kills). Later Faith goes after Joyce in her own home and of course Buffy arrives to save the day. Faith uses the device with unknown powers before Buffy strikes her down.