A mysterious ninja is robbing Wayne Enterprises subsidiaries, and Batman discovers that the ninja is actually his equal in combat. A grudge against Bruce Wayne and skills to match him can only mean one person: Kyodai Ken, an old rival of Wayne's from his days in Japan, and whom was thrown out of the dojo after attempting to rob it, only to be stopped by Wayne. Ken, it turns out, wants revenge.
Batman The Animated Series was a cartoon that premiered on September 5, 1992, based on the comic series created by Bob Kane, as well as the Burton movie adaptations. The series focused on the adventures of the alter ego of millionaire Bruce Wayne, Batman, a dark vigilante hero who defends Gotham City from a variety of creative and psychotic villains. The highly successful series merged stylish animation and fantastic storytelling more in the style of radio plays than typical cartoons.