Buffy the Vampire Slayer S00 E44 The Animated Series - Unaired Pilot

"Get home before dark."

Initially greenlit by 20th Century Fox in 2002, it went ultimately unproduced and unaired when no network was willing to buy the series. The series would have taken place in the middle of Buffy season 1, as writer Jeph Loeb described the continuity as "Episode 7.5".