A Knight of Shadows (1) Justice League : Season 1 Episode 18
TV-PG Cartoon Network 22m
Aired: September 20th, 2002 @ 9:30 PM EST on Cartoon Network
The sorceress Morgaine Le Fey and her son Mordred search for the Philosopher's Stone, and the Justice League need the help of the Demon Etrigan to thwart her.
